one thing that helped me is looking at the board, and trying to figure out what you think the opponent could have "when your not in the pot" if it goes to showdown how accurate was your read, play the hand back in your own mind or with a replayer if it helps, and see what the opponent was trying to do
K 6 5 flop. you bet, opponent calls.......... flop 10, you check, he raises, Ace hits the board, he shoves all in, and you see he has A 8 in his hand
now when you look back at it, hes called your raise pre flop light, so he is a Loose player
hes missed the board but he flats you anyway, maybe to see what you do on the turn
you have checked to him, so he raises you as a bluff cus he thinks you have missed
River hits, he thinks he just got lucky and wants paying
This is your typical average losing 2c 4c player
when he flats you pre, hes doing it light, hes difficult to read because he calls you with nothing
he will try to ouplay you without considering what hand you have, and this is why we usually say TPTK is great against these types of opponents
but when he does this same move again..... what do we put him on????
you can put him on a range "Ace high" or "straight draw" depending on the board, and then play it accordingly, if the straight hits, and he bets big into you, well what did we learn earlier "he got it all in when he felt he got lucky"
so we could very well be up against a straight and can let go of our TP TK
its all about experience against the player "player type"