the fold tell spotted at Borgata

When you first sit in a game, watch the hands and cards of the players to your left. See if they look at the cards before they have to act, or if they handle cards or chips differently when they limp, raise or fold.
I sat in a 10/20 limit hold 'em game at Borgata in Atlantic City, and immediately noticed that the player on my immediate left would look at his cards as soon as they arrived. He would then either wait until it was his turn to fold, or pick up chips. He picked up the exact number to raise or fold each time he picked up chips.
I put this useful information to work, looking to steal blinds more often when I could tell he was going to fold. I also reconsidered raising when I saw he was going to be in the hand.
When I was dealt aces and saw he was going to raise, I limped and then re-raised pre-flop.
It is hard to determine the value of most tells, this one clearly can make you a lot of money.
Oh, and if you're looking at your hands before it is your turn to act, you might be giving off this expensive tell.