Answer:
he gets hair on some different parts of his body, his shoulders broaden, his voice breaks and his willy gets larger
Rondoozle: In other words guys usually enter puberty at about age 12 & continue with it until age 21. All kinds of changes take effect within the body during that time. Like - growth in height, feet, hands, arms, legs, penis, torso, body hair, pubic hair, facial hair, mood swings, attitude, sexual urges, hormones racing from one end of the spectrum to the other, anxiety, depression, etc. etc. There are no quick fixes & no magic potions to hurry things along. Each person must wait their turn to complete development. Everything will happen in due time - and NOT before.