Not entirely, but tips are: Memorize which machines are advantageous and how many credits the machines must have in order for you to play them. Step 2 Look for machines that have been vacated recently and left in this advantageous condition...More?
A slot machine (American English), informally fruit machine (British English), the slots (Canadian English), poker machine (or "pokies" in slang) (Australian English and New Zealand English) or simply slot (American English), is a casino gambling machine with three or more reels which spin when a button is pushed. Slot machines are also known as one-armed bandits because they were originally operated by a lever on the side of the machine (the arm) instead of a button on the front panel, and because of their ability to leave the gamer penniless (bandit). Many modern machines still have a legacy lever in addition to the button.
Slot machines include a currency detector that validates the coin or money inserted to play. The machine pays off based on patterns of symbols visible on the front of the machine when it stops. Modern computer technology has resulted in many variations on the slot machine concept. Slot machines are the most popular gambling method in casinos and constitute about 70 percent of the average US casino's income. Entertainment
Slot machine terminology, characteristics and regulations vary around the world.
In Australia "poker machines" or "pokies" are officially termed Gaming Machines. Australian-style gaming machines frequently use video displays to simulate physical reels, usually five. These machines have additional bonusing and second-screen features such as free games and bonus levels. They also allow for multiple lines (up to 200) or multiple ways (up to 3,125) to be played.