AntiEverything wrote:
...As long as you talk to them they'll know you're receptive to their language which may involve them communicating to you they aren't interested whether by body or verbal language. You should just ask them are they interested in you, do they want to go on a date or whatever during the first conversation and then if you get negative responses just make it clear you're through with them and they're no longer a part of your life. Never let things be ambiguous if you want to be safe.

*Blinks* Ummm...you're assuming that everyone possesses the nerve to actually speak to those they find attractive...
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Remembering that you are going to die is the best way I know to avoid the trap of thinking you have something to lose. You are already naked. There is no reason not to follow your heart.
~Steve Jobs