PartyPoker - Player Characteristics

[imashyboi]

Can someone who has played on partypoker from limits 5/10 - 15/30(30/60 even) give me some advise on classifying my opponents. The problem is probably because I don't play thousands each week which is why I am not to confidents with my reads. I tend to second guess my reads on players which is why I need some help on this topic.

Can someone tell me how to spot a good postflop player and how to classify my opponent when you're not using PT as a tool. I know how to spot fishes who plays too many hands upfront but where do you put players who are willing to open-raise with QJs in one of the UTG seats. I'm just a little confused so any help would be good, I'll be taking notes on this by the way, Thanks