Although it sounds strange, if you choose five numbers on a ticket, there is no greater chance of seeing 9, 21, 35, 38, and 57 come up, than seeing 1, 2, 3, 4, and 5. 

So, although Keno differs from games like Blackjack and Poker in that the participant's actions have very little bearing on the outcome of the game, there exist, nonetheless, a few techniques that some gamers "believe" will help. Although they cannot be correctly labeled "strategic decisions", necessarily, the following tips and techniques are widely used and can make the game more interesting:

Play the numbers that you haven't seen come up in recent games. The theory is that they will start coming up in order to make the long-term results for each number even out. Once again, however, the "random" nature of the game prevents this from being a certainty.

Instead of betting on the numbers that haven't come up most often, a lot of keno players will bet on the numbers, which have come up. As much as it goes against the laws or chance and probability, there are always interesting trends and patterns when dealing with randomly drawn numbers, and these streaks can be very profitable when capitalized upon.

Pick successive numbers. Selecting pairs such as 12 and 13 or perhaps 43 and 44 would qualify as successive numbers. Although there is no proof this actually works over the long run, it does seem like many of the numbers that come out are in consecutive pairs. This is a very popular belief among many Keno players.

Use the same set of numbers consecutively. This strategy is very simple and the most common: play the same selection of numbers for a few rounds.

Remember that there is nothing 'strategic' about these systems, but they definitely are a bit of fun and they certainly will not harm your chances of winning.