When playing a slot, you should always read the pay table before spinning the reels. This will give you an understanding of how the game works and what symbols are able to make winning lines. The information can help you to decide how much you want to bet per spin and if there are any bonus features available. Typically, the pay tables are found near the bottom of the screen or in the help menu.
Many people get paranoid about casinos and think that someone in a back room is controlling the machine to determine whether they win or lose. In reality, however, every spin is independent and all that matters is whether or not you have Lady Luck on your side.
Slots are based on random number generators (RNGs), which produce results based on an algorithm that is constantly recalculating the odds of each symbol appearing on the reel. In the past, the number of possible combinations was limited by how many physical stops could be made on a single reel, but modern machines are programmed to weight particular symbols differently. This means that winning combinations are more likely to appear and that the odds of losing symbols being triggered are lessened.
Another thing to keep in mind is that even though high limit slots have a higher payout percentage than low-limit ones, this does not necessarily mean they are more lucrative. It also depends on how much money you are comfortable spending on a single round and how many rounds you will play before the max bet is reached.