Stay far, far away from the guys with tactical thigh rigs, BDUs and buzz cuts.
If you hear the word "Deagle", move a few spaces away.
Anyone not wearing eye protection is almost 100% sure to be a nut.
Don't fire a P-32 in a small lane with dividers unless you enjoy hot brass on your head.
Wear a very large Mexican hat. And DON'T wear shorts.
Don't stand there with your jaw on the floor if your SKS doubles. All the old feller's will never stop laughing.
Bringing ammo helps.
If you hear "Hey watch this" or something similar, hit the dirt.
If you saw it in a movie, game or some such, DON'T do it.
Do NOT, whatever you do, stand to the right of a CETME/G3 owner. Those casings are as lethal as the bullets.
If someone giving you advice asks you
why you bought XYZ, just walk away.
Outshooting people with your "cheap @&* junk gun" is fun.
Bayoneting the target when you run out of ammo is, strangely enough, viewed as odd by some people.
The fatter the RO, the more trouble he will be if you argue with him. (Not personal experiance here, thank goodness)
The more conspicuous and bright the part, the harder it is to find in the grass.