1. Wear jackets over your shirt or t-shirt.
Jackets are an unbeatable element when it comes to adding a few years to your age. Jackets make your frame appear larger and can add a certain level of style and class to your appearance. This trick will work best for guys who look younger than their real age simply because they are thin. Teenage mustache styles.
The right jacket can also make you look older from a maturity perspective. Wear a nice black suit jacket over a button-down shirt with jeans and shoes when you are going to a party. You'll instantly look far more mature than the other guys who walked in wearing t-shirts and sandals.
2. Show maturity through your body language.
From attraction and love to maturity and attitude, a guy's body language can speak volumes about his emotions and personality. You can use body language as a passive assertion of your age, especially if you think that having a baby face is making you look younger. Practice some of the following tips to improve the maturity of your body language.
Stop fidgeting and control involuntary hand or foot movements.
Stand straight and have a confident posture—stooping while walking or sitting will never let you break out of your shell.
Don't look down while walking.
Look at people in the eye when you speak to them.
Maintain a calm and relaxed demeanor.
3. Choose button-down shirts over t-shirts.
If you are really suffering from a lack of confidence because you think that you look much younger than you actually are, try adding some stylish shirts to your wardrobe. Apart from enhancing the maturity of your style, shirts also add volume to your frame.
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They don't need to be formal and boring. From trendy flannel shirts that look great over jeans to plain ones with stripes or other designs, a nice shirt can really make your personality pop.
4. Deal with your acne.
Acne is typical for teenagers, and for some guys it can continue into their early twenties. If acne is enhancing your baby face, handle it by buying a cream or cleanser to remove and control breakouts.
Follow a regular skin-care routine for a couple of months until your acne is resolved. In some cases, you may need to consult with a dermatologist to get your acne under control.
5. Bulk up by working out—put on some muscle to look older.
Whether your lack of self-assurance stems from your baby face or the size of your body, one way to look older and increase your confidence is to hit the gym and bulk up. Train hard, complement your training with protein supplements, switch to a healthy diet, and get into a nice lifestyle routine. Bulking up by exercising is not an instant fix, but it is possibly the most permanent one.
Apart from the fact that a muscular body will make you look older, it will also increase your self-esteem. Improving on aspects of your image that you have control over will give you a boost in self-confidence, making you more attractive to others.
6. Don't wear tight-fitting shirts or t-shirts.
Guys who are thin should remember that wearing tight t-shirts or shirts can make them look skinnier and younger. Going to the gym for a couple of months isn't reason enough to walk around wearing the skinniest t-shirts possible to flaunt muscles that may be more imaginary than real.
Wear shirts and tops that are neither too tight nor too loose. Either way can spell disaster if you don't want to highlight your skinny frame.
7. Don't wear pants that are too skinny.
An extremely skinny silhouette of your legs will work against you if you are trying to look older or bulkier. Try wearing jeans that are styled as 'slim fit' instead of skinny.
Skinny jeans can be a risque fashion statement when it comes to guys. They look good on men who have the legs to carry them off, but if skinny jeans make your legs look like a pair of matches, it may be best to avoid wearing them.
8. Wear the right hairstyle for you.
Long and unkempt hairstyles look good on a select few. But for guys who have a baby face, this can go horribly wrong.
For example, One Direction's Harry Styles can carry off his unkempt and scruffy hairstyle because he has a large face. Try to imagine Niall Horan with the same hair. It could be a complete disaster, even though Niall is just as cute and handsome as Harry. This example simply highlights how certain hairstyles suit only guys with certain features. Make sure you select a hairstyle that is flattering for your facial structure and style.
Don't wear your hair too short if it doesn't suit you. Short hair can make guys look younger. Try styling your hair in a way that adds volume to your face if you’re worried it looks small.
9. Grow a beard or mustache.
One of the easiest ways to look older than your age is to have a beard, mustache, or any other patch of facial hair. It will immediately add at least a couple of years to your face. Even Justin Bieber started growing a mustache to look slightly older.
Don't let your facial hair grow into an unruly beard like the ones that the Duck Dynasty men have. Use a trimmer to trim and style it so you can continue looking older as well as trendier.
10. Speak in a heavy and deep voice.
Guys have been using this trick forever to sound older while talking to girls on the phone. It is undeniable that a heavier and deeper voice can make a teenage guy sound like a twenty-something-year-old.
Let your voice shine out, open up your vocal cords, and don't be meek when you speak to someone. A deep voice can give your personality a complete overhaul.
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11. Choose aviators over sports sunglasses.
The type of sunglasses you wear can have a significant impact on others' perception of your age. If you want to look older, avoid sleek sports sunglasses that wrap around your eyes.
Instead, wear a pair of the iconic aviator-style sunglasses. Aviators have an unmatched appeal that makes them look really cool. Pair these glasses with a black faux-leather jacket, denim, and rugged boots to look much older and cooler than you are.
12. Wear a nice watch.
Colorful watches with rubber and nylon straps are typically only worn by teenagers. If you want to look older, switch to those with faux-leather or stainless-steel straps.
A watch is a timeless fashion accessory for men. With a diminishing value from a functionality perspective, not all guys like to wear watches today. But those who do certainly portray a mature sense of style.