You can take part in more men's sports, eat more seafood, seeds, masculine food, bask in the sun and imitate men's behavior. Pay attention to dress, clean and tidy, don't be neutral, and pay attention to hair style, which is very important. Try to comb the boy's hair style, don't leave it too long, and take the rest slowly, and you can learn a lot from literary works slowly.
Everything is a process from quantitative change to qualitative change, so is improving voice.