2 words: Maximum Concentration. When I gamble, I try to distract myself from the rest of the world by focusing completely on the game. I like to feel the increasing level of concentration, as I take this process extremely seriously.
This is a great approach to playing slots, imo. This way you won't increase your chances of winning, but if you use slots to relax, to forget about your daily concerns, to pump some dopamine into your brain, focusing completely on the game is what you should try to do.