Unfortunately this problem isn't limited to non-tanks. I tried to explain to a Paladin tank the other day that my trap has an arming time, and pulls would be less messy if he marked and let me trap first. I am capable of pulling a mob to a trap if necessary, but with the trap launcher the mob stays out of the group and the tank put his consecrate down without worrying about breaking CC . He said he didn't want to be slowed down by bads and I got booted for my trouble.

When someone yells GO GO GO at ME, I immediately come back with "Do not scream at me. I will NOT GO GO GO. I go at my speed and the healers. If that's too slow for you, please drop group."

Usually shuts them up.

The biggest thing I learned in PUGs is to be specific. Assume nothing. The other night I was in a half PUG (I had a healer who is a good friend and one of his guild warlocks) with a random DK and ele shammy.

We were in H Throne of the Tides and on the first boss I gave the fateful instructions: "Burn the melee adds and cc the casters." The warlock offered to CC the left add, the shaman said he'd take the right. Okay.

Boss comes out, we're avoiding the floor-death, and since I had never tanked this boss before I was tanking her in the middle. Apparently, the melee add comes out closer to the back of the room, so the DK was way closer to her. He took to heart the words "burn" and immediately started in on the add, getting two-shot in the process. We then wiped due to not having the DPS to burn the adds before she came back up.

What I learned? Be specific. I quickly added to my instructions that "When I say burn, 'let the bear hit it first' is implied." But nothing is really implied. If you mean you'll be tanking something but they need to DPS it down quickly, say so. Especially because on that last boss in the dungeon, I would not be tanking the murlocs or channelers, but they still needed to be burned down hard.

You cannot be specific enough, because no one knows each others' playstyles very well, you have to kind of learn on the fly that the DK will be helpful and death grip casters or that the ele shaman does not have a clue what a LOS pull is.

@gossamer
THIS x10000

Tanks, for the love of god, PLEASE learn this one thing: Hunter traps have an arming time. If it's a launched trap, it has a flight time. If you want me to thow a trap onto a mob, then yoiu have to learn to let the hunter pull, otherwise the mob won't get trapped, even some castor mobs move a little when the tank throws something at another mob in the pack.

I've been kicked so many times from groups because either I'm told off for starting the pull with a trap or worse, failed to trap a mob after the tank pulled as I was launching. This is not teh hunter's fault, it's the tanks. Learn This Well tanks...

I agree with Snuzzle, you can NOT assume a THING! Even in normals! I was in a Lost City PUG and the tank was just pulling without saying anything or asking anything. Up until the point when we wiped on High Prophet Barim, I thought everyone knew what was going on because no one seemed to be doing anything wrong and no one asked anything. Afterward, the healer was complaining that this hunter was standing in stuff too long. He said "I don't know the fight :( sorry." Which is when I realized that he hadn't been there before and he hadn't needed to really know much about anything on the first couple bosses. So I told him to not be ashamed and that he should probably speak up when he has a question. I think people asking questions and learning the fight is definitely better than wiping on even a normal boss...