I've felt that spark before. I always thought that maybe it's the signs, the stars and planets. I'm still guessing it is. You know, when you're somewhere, anywhere, and one person just sticks out and you feel this bond between the two of you, and you know that the other person is feelig it too. You just feel this force pulling you to eachother. But what can you do? I just smile and maybe say hi, being polite to strangers, and then continue on. What else can people do in situations like that?