There is no technique to win in slots machine, if there were many casinos would have filed for bankruptcy already. What you really need is your luck to be strong and your timing right. I have tried this method before wasn't able to get any great success but your call if you want to use it. So select a slot machine count it every time a slot is moved, after every 25th you'll be able to pick the next one correctly but it's difficult to do it. I would just trust my luck nothing else, if you're playing online play at a good casino like bitdice which is fair and you'll have better chance of making some money.