If you are interested in these activities, talk to your pediatrician about a safe time for you to begin weight training. Your voice will get deeper. This may start with voice cracking. As you continue to grow, the cracking will stop and your voice will stay at the lower range. Chest hair may appear during puberty or years after, although not all men have chest hair.
Some men shave the hair on their faces.
There is no medical reason to shave, it is simply a personal choice. If you decide to shave, be sure to use shaving cream and a clean razor made for men. It is a good idea to use your own personal razor or electric shaver and not to share one with your family or friends. Skin may get more oily and you may notice you sweat more. This is because your glands are growing too.