How do I know if the guy i like is gay, bi-sexual or straight?

Question:

How do I know if the guy i like is gay, bi-sexual or straight?

A friend tells me hes gay but i see her looking at him like she wants him for herself. He dosen't seem gay to me, especially the way he looks at me. He is a total gentleman around me.

Best Answer - Chosen by Asker:

Don't worry what she thinks go with your person feelings.