Yeah, the more you play live the more you'll pick up little things that happen. When the flop is coming I DO NOT LOOK AT THE CARDS. I watch the other players that are still in the pot. They may react to what they see if they get something good or bad. After I make a mental note of anything I saw, then I will look at the flop.
This will also help if someone is watching your reaction to the cards. You won't have one if you're not looking at them.