I never complimented a girl on anything physical during the emailing back and forth stage. There was one girl that had a really amazing smile that I did tell her that on our first date.
I never had the time to talk to or date multiple women at once. Not sure how many people do that these days with work, kids, and other responsibilities.
Just have fun with it, correspond when you feel the need and just enjoy it. Try to not take it overly serious.
