There are more virgins out there than you know. As for initiating it, things like that tend to work themselves out if the two of you are interested in each other. Don't push it. Relax. Wait for someone you really like, especially since you said you "get involved." If you are desperate to know how to do things, there are books and videos, but there is something to be said for just figuring it out. As far as telling the person, that's up to you.