Whenever you play online slots, it is best to place the highest possible bet to maximize your chances of hitting the largest prize. Many features, such as in-game bonuses and progressive jackpots, cannot be activated unless you place a bet on all available paylines.
To adjust the bet in online slots, use the standard buttons:
Coin value (adjustment is from 0.01 to 1);
The number of coins that you bet on one payline (Most often from 1 to 50);
Adjust the number of lines you are betting on.
If you want to put the maximum value on the maximum number of paylines, then use the Bet Max button for that.