visit www.pegym.com and search word Kegel exercises. your problem may be solved.
try to viait penisad . com website
it has some natural exercises to increase length and girth. but it takes time to see results and lots of patience and time.
You can't. And pills won't help either. The only thing that can add significant size to your penis is surgery, and you don't want to do that! Avoid vacuum pumps, stretching exercises and things like that - not only will they not give you any genuine and long-lasting increase in size, they could cause damage to your penis.
Trimming or shaving your pubic hair can make your penis at least look a bit bigger, even if it's not actually any longer.