Well there is no law that says you can't do anything you want to do. But it is makeup. It's kind of uncommon for males to wear makeup, but it's not illegal or unheard of. It's not necessarily a bad thing: but I imagine that the gay homosexual community of males wear more makeup than the hetero male community. And a male wearing makeup might convey a message that you might not have intended to make. It's really your choice though.