This is a very basic question and I'm not a good teacher, but...
Pretty intuitive if I'm honest and it comes with practice, loss and analysis. Bet on your opponent missing the flop as they usually do and in microstakes people don't stick to dry boards. Higher stakes, it takes more persuasion to get them to fold.
Other than that, you can have a jack in your hand like an AJ and get the other 3 jacks on the flop, could this be your lucky day huh? But someone like me, as it happens, sticks around and beats you with a straight flush by the river, even though you had the absolute nuts. Got proof as I couldn't believe it myself. So, better stick to guessing what others have rather than what you could make. Draws are just draws usually.
Best practice for reading boards is Omaha, a drawing game where strong draws have more
equity than made hands.