does anyone know some signs that me and a friend can use when playing poker to "cheat", or tell eachother what we need or have?
Okay let me clarify, we are playing for worthless, plastic chips and it’s just me and about 5 other friends. There is nothing at stake other than bragging rights.

I am new in playing poker. can you help me with this?

In no-limit, when the blinds go up every 15-20 minutes I find my self going all more then I want to and being way to aggressive at times because are rapidly going up blinds. I find this to be more gambling then playing poker.

How do you play?
Some more info. Most tournaments live or online only give you between 1500 to 3000 chips and blinds starting off at 25/50
Edit: I am not asking you how to play but how do you play with the blind structures like this.
Just to be clear I am asking how do you approach this situation in your own way. Not asking for the best just wondering whatever one else does.