I rarely hunt with the same people, there might be one or two other people i have Hunted with but the rest are always new. My trip next weekend is another example. I have been invited by one of my mates to hunt with his hunting group. I have never met any of them, but have no issues with meeting people for the first time in the bush. So far all my hunts have been extremely fun and successful.
I believe the trick is not to expect anything (other than firearm safety) from people. This way you don't get disappointed or upset when people don't meet your expectations. I have a very simple motto in life that I live by, :to each their own.
This has served me well and i have had the privilege of meeting extraordinary people. Some i might not be best buddies with after the hunt, but for sure will hunt with then again.