I play a lot of amature games so the basics are all I use.

Poker Battle Tactic #2: what does my opponent have?

Amatures will generally play big card-low kicker, especially suited. So when they check to you and you bet (hopefully your aggressive) and they call you can put them on top or middle pair or a draw.
Some will usually raise and call big bets with any pocket pair.

Aggressive players can raise but usually limp early on with small pocket pairs and suited connectors. I sometimes raise them with middle pair when I think they are stealing.

Tight players raise with hands likely to hit top pair. And will usually fold if they miss the flop.

Loose players play lots of course so on the flop you can expect them to call with top pair little kicker or middle pair.