Understand the return figure
RTP describes a theoretical long-run average, not the return you should expect from a session. A game can have different versions, so consult its own information panel.
Volatility and stake
Volatility describes how uneven results may be. Set a stake and spending limit you can afford to lose; no slot guarantees a winning session.
Check features carefully
Bonus buys and special features can cost more than a normal spin. Read the price and rules before activating them. Game availability varies by operator.