Regardless of age or height, just about any man can massively improve his appearance with these steps:

1) Try to keep a clear face and skin. Use a product that was created to treat acne if the situation calls for it.

2) Shave, unless you highly prefer not to or/an you want to possibly cover up something like acne scars or/and any possible acne that's remaining. My personal preference is to wet my entire face with warm water first, mostly then dry it with a paper towel, then use shaving liquid before usnig the shaver. To me this seems to be the fastest way.

3) Make sure most of, if not all of, your nose hair is trimmed.

4) If you have a unibrow, get electrolysis or use a nose shaver on it.

5) Cut your nails and make sure they look clean.

6) Your eyes are an important part of yor appearance. If your eyes look "baggy" or "sleepy", resort to using eye drops. It'll likely be worth it.

7) Make sure you have a great hairstyle that suits you. But if you are balding, do not try to hide it with a comb-over. It is a better idea to shave your head altogether in that case. Many women most likely do not have any problem with a shaved head, and some at least may even prefer it.

8) Among the most important tips is to keep your mouth fresh, always. Try to have at least mouthwash available for whenever you've finished eating. Keep having great hygiene overall as a top priority of yours.