Not advice just questioning

For me its hard to tell the real ones from the fakes. Being gay I'm very careful in how i talk to people who i am interested in. They could be straight(That has happened before). Trust me its super embarrassing, as far as pan Otaku. I have a friend that is Pan sexual, and he seems to be having some trouble trying to date. With him being FtM its something that he wanted my advice on. Sadly I had no answer for him, not sure how to go for people. I think by putting myself in someones shoes. However, these was something on a totally different scale. I mean do you go for straight girls or Lesbians. Gay guys or straight guys. And how do you differ from what you want? I racked my brain but I couldn't come up with anything. Pan relationships seem like it might be hard to work with. I don't envy him, I just wish i could tell him something besides follow your heart. But as far as your answer, I feel they can do as they please within your relationship. And as far a tendy Bi people, I wish i could tell the difference more often then i do. It would make dating in the Otaku/anime scene much better for those who are looking for a relationship or casual friends not to be cool for ten minutes.