I think testing is a bad idea.  I just gotta throw that out there.  Sure, you may get the result that you’re looking for, but honestly… testing usually freaks some people.  Not only that, but you can get a false positive… meaning that anything that you do may show you the result that you want, but that doesn’t necessarily mean that he’s gay (or bi).

As an example, I fail most “tests”.  I’m not very stereotypical at all.

I honestly think that the best route to go is honesty, but I understand the circumstances that you’re going through.  It’s often not that easy to do that.

You could ask him what he thinks about current events (the recent prop 8 stuff may be good).  By getting him to open up and talk about gay issues… would typically be a way to “test” his feelings.  At the very least, you may find that he’s really gay friendly. 

Remember tho… just because he’s not been with a girl doesn’t mean that he’s gay.  He could be religious or insecure about something.  Maybe he’s just not all that sure what he wants in life.  It’s really hard to say.

I think I’d have a fairly candid conversation with him.  Ask him what he thinks about things such as gay marriage and stuff like that.  You can say something like that and still not “give off” any signs that you are also into guys. 

Another thing to think about… if another guy started asking you all these questions, you could get nervous and clam up because you may think that someone is starting to figure the truth out.  That’s always a possibility.

I hate to say it, but I still think having a straight forward conversation with him would be best.

In any event, please let me know how it goes! :-D

I’m here if you want to chat more about it.

kev