First symptoms of puberty are what?

Male puberty. As is in girls, one of the earliest signs of puberty is body odor. Some boys also develop short-term mild breast enlargement. Then comes the development of facial and pubic hair. The most noticeable change is voice change to a baritone quality. Sex organ enlargement is implied.
Puberty. First in girls is breast development or breast buds. First in boys is testicular enlargement.