Or, if you're rejected, you'll learn empathy for those men who choose you and whom you reject. You can hardly lose. It's okay to go for physical chemistry first. There is a danger in that, though. You could be so overwhelmed with physical attraction that you put up with him, even if he's not the nicest guy in the world.
Handsome men tend to be spoiled, so be careful.
Sometimes, as you get to know a man, he becomes more physically attractive to you. I've been dating a girl. She's divorced, has already a kid. But the problem is that she doesn't forget her just broke up marriage, she's always remembering all the bad things, her ex-husband did to her, and she claims some of the guilt to me. Divorce is a little like death, and the feelings after a divorce go through similar stages.