Play the maximum bet:
One helpful tip is to bet the maximum number of coins per spin. In order to hit the jackpot on some of the progressive slot machines, you have to place a maximum bet. So if you bet a smaller amount, even if you match all the right symbols, you'll win a smaller payout.
Read the payout schedule:
It's important to read the pay schedule so you can know the maximum number of coins to bet. Some machines only pay out when you do this.
Double jackpots:
Double jackpot symbols are very lucky. Sometimes, they can help you win double or even triple the payout and they can replace any symbol. They're usually red, white and blue sevens or even double and triple diamonds.
Play the single pay line:
Single pay line machines tend to have larger payouts than the multi pay line machines.
Other slot machine tips and advice:
Always remember to check the value of the symbols on every slot machine. This is important because they can be worth different amounts from machine to machine. Also remember to check the payback percentage, the return you'll get on your bet. Most gambling establishments have machines with payback percentages set to over 75 per cent.
Stop while you're ahead:
One finial tip is to set a limit for yourself and to stop playing once you hit it. Just because you're pumping money into a machine doesn't mean you'll win or even that you'll be guaranteed a large payout. Stop while you're ahead if you win. The more attempts you make to try to win back your money will usually end up costing you all of your earnings and force you to spend more money.