As with any game of pure chance, there is no real effective strategic system for winning at slots. Never believe if somebody says that he has an incredible winning strategy. The machines have no memory, so there is no effective way of outsmarting them. The strategy can be represented only by a number of tips. You should always be looking for the machines that have the highest payout. You want to find anything 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. Before you start playing slots get acquainted with the payout schedule. 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. If you think that the machine you are playing will hardly pay anything out you’d better stop playing it. When things are going your way and you're on a lucky streak, take advantage of it and bet more. When you're slumping, bet less. Find a machine that suits your bank-roll. If you have little money you’d better paly dollar machines. Before leaving the casino don’t forget to cash out the credits. It may seem strange but some gamblers forget to do it. Try to play the slots or games you have played before.

I tis important to now what you are playing.
It is important to know the correct amount of coins that should be inserted into a machine. Before leaving a machine cash out your credits.
Just have fun. Slots should be fun, not stressful. Use money management. Increase your bets when you are winning, and decrease your bets when you are losing.