[Rev. Danno]

Hmmmm... Sure fire ways you can tell are
1). She asks, "you don't mind that I have a boyfriend/girlfriend" even though you haven't even thought about the secks.
2.) she Jumps on you at the moment the words, "dude, I am so drunk" are uttered from your mouth.
3.) She asks if you want to sit on her lap to keep it warm...
Other then these... I'm pretty much clueless, and hit on everyone and hope at least 1% responds...