When giving the one-armed bandits a go, many people have different strategies. Pick one that feels right for you. Personally, I will bet low, low, low, high, high. When I win I will add an extra high to the mix. When I lose I will return to the original pattern. Of course no system guaranties an increased chance of monetary advance. Though mixing it up, instead of just playing the same amount repeatedly does add to the enjoyment.
If your particular machine offers the chance to win in more than one line grouping, it is worth taking advantage of. Of course it will cost more. Though you will have more ways to win. You may find it enjoyable to take the time to learn the particular rules of the video slots game you are playing. Then you can realize how close you came to winning. That can either be exciting, or depressing, depending on the type of person you are.
Sometimes you will get a sense that a machine doesn’t like you anymore. Get up and walk to another one. Moving around is fun. Try not to feel like everyone is watching you, imagining it is strange. They aren’t. They are busy either enjoying themselves, or losing their own money.