I never had a problem in admitting that I liked certain metal bands. If people laughed then they laughed but I liked a lot of the classic metal bands such as Judas Priest (still #1 IMO), Sabbath, Maiden and so on. Along with the classic acts I also liked quite a few of the hair metal bands like Poison, Keel, Winger, Ratt and so on. Never be afraid to admit what you like. Whoever doesn't understand or makes fun of you, FUCK 'EM!! Especially if its an attractive girl / woman.