For the most part hunter is a very easy class, solo and groups, a hunter can do alot, and can help out a group with alot of utility, but for the most part its "pet attack, auto shot, then mix in arcane and stings"
Depending on your spec you might have osme other things you can do, but for general play 4 maybe 5 buttons at most, and with macros its even less (pet attack + start attack + hunters mark) and could put arcane and stings on a sequence macro doing sting then like 3 arcanes, then starts over, then you just have 2 buttons to press attack, and skills
But a hunter can be complicated to fully reach your potential, pulling, managing adds, pet off tanking, traps, and many other skills, but those arnt overly important in a decant group, but if you know how to handle just about anythign that comes at you, people will notice, like when you place a frost on the priest and it traps the first mob that comes near him/her and when you use your AoE skills when you come across groups of lower level mobs (multi, volley and if ape pet thunder stomp)
A hunter has alot of versatility, but overall play can be very simple, and the group doesnt fully expect alot from a hunter other than for them to shoot the target and not die. Other than that, the rest is up to you, to be just a face in the crowd, or the one who turns a possible wipe into a victory :)