Poker Tells: Taking A Long Time To Call
If your opponent is taking a long time to call your flop or turn bet this is a tell that he is on a draw. He may very well be trying to figure out the pot odds to decide if he should call or not. Pay attention to see if you notice a player doing calculations in his head (Yes this actually happens). Don't forget your opponent could have bottom or middle pair and be drawing to two pair or trips. A draw doesn't automatically mean a flush or straight draw.
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