You cannot deny the fact that gambling can be an enjoyable activity.
With the right tricks comes the profit
Find a slot with a smaller jackpot because the lower the jackpot, the more realistic the payout.
In particular, you must play games with the highest payout percentage. Ideally, you can do this on a machine that is easily visible. If they pay out winnings on clearly visible machines then this attracts more players. However, the attention is limited to machines that are in a dark corner.
Unluckily, there are safe tricks for most games of chance. You have to bear that in mind when gambling.