Not 100% sure what 'gay' is.

[pedrobehr]

Does it need to be both emotional and physical?

[Scarface]

Gay is a %100 physical and emotional attraction to men/woman of the same sex. That's imo I'm gay and that's how I feel. I have no attraction to woman what so ever to woman except as friends.

[Antares]

Yes, basically.
You basically should be sexually attracted to men, and loving of a man.

But it depends on perspectives, lots of people have different takes.

General :arrow: Teen Sexuality