Bingo is considered to be a no strategy game but still people who have played it intensively have brought out certain strategies that could be employed. These might barely help the player all the same it might prove critical.
The basic strategy is that of selection of cards. The right cards have to be selected so as to improve one's chances of winning a game. A right strategy for this would be selecting the card, which has an even mix of even and odd numbers. Selection is considered a good practice because the numbers selected are constantly shuffled. So selecting a right card is very important.
Another thing that players should avoid doing is buying a lot of cards for a single round. Buying many cards for a single round doesn't improve chances of winning. What it does is increases the amount of risk involved in the game resulting in losses for the player. Mathematically proven, this increases the chances of winning.
One good suggestion is to be a good listener. If one misses his/her number and doesn't track it before the game is over he might lose out on a very good chance of winning a good game.
A good practice for online bingo would be to chat. It adds to the entire experience of gaming on the web.