Can you turn a friend gay?

You could certainly try to 'expose' yourself to your friend and see his/her reactions. If they are checking you out as well or following what you're doing, then you know that something more can happen.

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I'm imagining three possibilities surrounding this question:

1. A friend has accused you of turning him gay.

2. You wish to attempt to turn a friend gay.

3. You're just curious about the answer to the question.

While many people disagree on this issue, most educated people will tell you that one cannot be "turned gay". In fact, my friends who are gay tell me that they didn't "turn gay" at all. They just knew, almost all their lives.

Therefore, the simplest way to put it is no. You can't influence the sexual orientation of your friend.