How do you tell if you are a virgin?

All that "virgin" means is you have not been penetrated by a penis.

However, guys especially need to get this-- a female's hymen is NOT, NOT, NOT a sign of whether a girl is a virgin or not! The hymen can tear for any number of reasons, not just from having sex. Most girls do NOT have an "intact hymen" before their first sexual experience.

Have you ever had sex? If the answer is no then you are a virgin

A virgin is someone who has not had sex. You can tell you're a virgin because you know you have not had sex yet.