OK, here is what you do:
First learn what an Opposite is and what a Repeat is:
An Opposite is when the opposite side wins relative to the prior play.
A Repeat is when the same side wins again.
Keep a running count +1 for an Opposite and -1 for a Repeat.
All shoes, at the end favored either Opposites (a + count) or Repeats (a - count).
You job is to figure out early in the shoe which way the shoe at hand is headed.
If the count favors + you flat bet Opposites
If the count favors - you flat bet Repeats.
Some shoes won't favor either - the count keeps going back and forth across 0.
In this case, don't bet at a 0 count. But bet that the count will head toward 0.
Don't be greedy - just go for one or 2 units and quit.
As you get better at this you can increase you goal to 3 or 4 units but no more than that.
If you want to make more money you are better off to increase your unit size.
When you've made enough money, then buy NOR with your winnings
and we will teach you how to really play.