If you came out with a BIG juicy bet on that flop for lets say 80% of the pot, and he just called. I would say you got em. He seems very weak not to reraise you and to just call when if he did have the better hand hes still just giving you free cards which is just stupid. I cant believe that. So I would dsay easily you got the best hand and on that river you should through out not a big bet nor a small one, just a value bet so yuo can extract more money off of the guy
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-Drago
To the End!