Definatly pays to approach each surf with an open mind, the A-hole surfers are probably agro before every surf and they can keep that attitude, bewilders me how people can live there life like that?
Treat people how they want to be treated. I dont mind a bit of mind games with someone who wants to play them (snaking, paddling 30m to try and get to a peak you are on after getting one or paddling at one from the out side like they are gonna drop in) but also enjoy surfing with people who just enjoy surfing.
It would never cross my mind to snake, drop in or play games with someone who just happens to be in the same area. Usually you can suss it out with a simple hello or smile, you will know that quickly what type of surfer they are.
Hold no grudges and enjoy yourself above all else I reckon, its just too much fun to worry about other people. Come up with a strategy to deal with all types and you will be unfazed.
PS. The paddle battles with a serial snaker or drop in are good to see where your fitness is at ha ha nothing better than beating someone to the punch that wants to be a hog