How can I increase my chances of winning in slot machines?

First of all, you should, whenever possible, consult the paytable in order to see the payback to the player, how much certain combinations pay out, whether the game has a bonus round, progressive or fixed jackpot, etc. Knowing all these details in advance puts you at an advantage to know how much to bet and how. When you get a winning combination, you will know that you are closer to your goal because you already have a strategy and budget outlined for the slot.