There is hardly any strategy that can be applied to slots. You will probably, of course, encounter someone who claims to have developed thefool-proof' slots strategy system but please, ignore such advice. The outcome of slots is accidental. The machines have no memory, so there is no effective way of outsmarting them. But it is wise to play with useful tips, which can really help you. It doesn’t mean that you will win a lot of money, but you will not lose so much. You should always be looking for the machines that have the highest payout. Play slots with the payout above 95%. Like other casino games it is very important to know the odds and probabilities of the game you are playing, the same thing with slots. There is a payout table for each slot, so make sure you read it before inserting coins. Before you start playing set for yourself a losing limit. Once that limit is reached, go do something else. You will not be a winner every time you play. The machine will not feel bad if you spend a lot of money and don't get anything back. Try not to spend all of your time on a machine that isn't paying out. Don’t be afraid of making higher bets if you are on a lucky streak with this very machine. When you're slumping, bet less. Choose a slot according to your bankroll. Play dollar machines if you don’t have much money. Cash out the credits you’ve won before leaving the slot machine you’ve been playing. Sounds obvious, but a lot of people forget! Try to play the slots or games you have played before.

You must know exactly the game you are playing.
It is important to know the correct amount of coins that should be inserted into a machine. Your credits should be cashed out before you leave the machine.
Only if you have fun your gambling won't be stressful. If you feel lucky increase your bets and vice-versa.