Strictly speaking, a strategy is aplan to get the desired effect from a given action. In poker there are several “types” of players. Each has a different basic strategy.

Tight players play only premium hands like big pairs (AA, KK, QQ) good suited connectors (10-J, J-Q, Q-K or K-A and sometimes A-2) The pairs are “made hands”, meaning that you already have more than any 2 random cards and the larger the pair the better. Suited connectors can get you a straight, flush or straight flush which are all good hands. If they play these and nobody else is betting they can be pretty certain that they have the best hand. With suited connectors if they don’t hit their straight or flush and someone else is betting then they can fold and if they do hit then they can win big pots.

Loose players play all kinds of hands for small bets or calls and hope that something big hits so they can extract the maximum amount of chips.

Aggressive players can be either tight or loose, but whatever they play they often play hard, making large bets and raises, often hoping to either beat or bluff their opponentout of the hand.

Quiet, sneaky, or “timid” players can also be tight or loose but they tend to bet small or just call and often that’s in hope of trapping an opponent - getting the opponent to think they have a weak hand so the opponent is betting and they don’t have to risk revealing information on their hand by how they bet.

There are also game strategies which vary. Ring or live game vs tournament. And in tournaments it also depends on what part of the tournament - early, mddle or late game. There are many schools of thought as to how you should play any strategy and when and how you should change from one to the other(changing gears) during the course of a game to keep your opponents from figuring you out or “reading you”.

That’s just a basic rundown of player strategies. VERY basic…lol but it’s a good starting point. I’m sure other will have more to add, and there are a lot of good books. Super System ans Super System2 come to mind. There’s also “How to play like a Pro” but since I can’t stand Phil Helmuth I would never recommend that one…lol There is also a lot of poker on TV, some of the commentators are prett good and a few of them are also pro players intheir own right so they explain a lot of this and you can see examples in action so it might make more sense. Other than that, play some freerolls and experiment to see what you are comfortable with.