For this example, I'm going to be using The Roaring 20s slots event.

It should look like this when you enter.

In the center row, is your slot. You get 1 for free and you can unlock the other 2 for diamonds.

Underneath, you can buy jokers.

You can also spin the slot, They cost 1 emerald. In order to spin it you need lives.

If you don't have any lives, you can spin it for diamonds. They cost 2 diamonds for 1 spin and will continue to be that way until you earn more lifes

Each life will take 20 minutes to refill

When you spin the slot, you can win coins, depending on what symbols you got and how many appear.

There are 5 symbols, you need to get at least 3 of the same one to win coins or a spin life.

You can unlock more rows so that when you click spin 1 time 3 rows will spin.

You can also buy jokers. When a joker appears, it will turn into the best symbol possible to win bigger prizes. You get 5 jokers for free when you start.

At the bottom corner, you have the coins. You can use the coins to spin the wheel and win clothing and a hair prize.

Different boxes need a different amount of coins and give different clothes and hairs.

If you manage to collect all the clothing and hair from one of the boxes, you can win the grand prize.

The first box costs 10 coins.

The second box costs 20 coins.

The third box costs 40 coins.

You use your coins to play. They will be deducted depending on how many are needed.

You will get an clothing item or hair. In this case, there are 10 clothings with 6 colours each, and 1 hair. So there are 61 items to collect in total.

If you collect them all, you can claim the special prize, usually it is a pose.

Have fun and good luck!