These are some main strategies approved to play. Print them and stick them on the wall:
a) Know what you are playing. There will be a payment table in or next to the machine. Be sure to read it before playing.
b) Always verify that you enter the correct amount of coins in the machine.
c) Always cash your credits before leaving a machine. It seems obvious, but often people forget and there is always someone loitering nearby looking to take advantage of the situation.
d) Have fun. Slots have to be fun and not stressful.
e) Handle correctly with the money. Do not waste all your money in one or two plays. Increase bets when you win and lower when you lose.