Judging your hand strength on different boards

[Chaoslord]

tight players usually bet when they hit the flop hard, like 2 pair+ or a good draw. agressive players bet when they hit something or they were the preflop agressor and the board is good for a continuation bet (usually against 1 or maximal 2 players only) or on the flop everybody checked and now the turn is a rag or pairs a card.