Ok. Well if you want to be good girlfriends:
Try not to nag (too much, I know it's hard).
Cook a decent meal every now and then.
Look good, but not slutty (except on halloween).
Spitting or swallowing is moot, as long as the option exists.
Now if you want to be a decent member of an automotive enthusiast site:
Be an automotive enthusiast(not the GF/BF of). Knowledge isn't as much a prerequisite as enjoyment.
Maybe post pictures of the vehicle you're so enthusiastic about.
Don't talk about your "plans" with your vehicles.
Did I mention ... PICS PICS PICS !!!
Read the rules and stickies.
But the most important rule, the rule you can never forget...
...no matter how much he cries or how much he begs...
...never, never feed your internets after midnight. Got it?
Or take it too seriously.