Not a big fan of ring game, game works better in a tournament format as you can be more creative.
Firstly, you need to understand rules - 7 5 4 3 2 is best hand. Flush and straights are no good.
If you have 3 of the above 5 numbers then raise, regardless of action before you. If you raise first see how many cards opponents draw - if they draw more than you, keep betting (you should really just keep betting anyway if you raised initially).
Other than that, you should really get Super System 2. You should call on the river with a lot of hands (i.e. Jack high) even if you missed your draw, as opponents often pair up on the river (as you will). But if you are playing it without any real idea of what is going on, a capable player is easily going to take money off of you.