Here’s a quick guide on how to get yourself in an instant queue. You may want this if you are a DPS only class.
First you are going to need two different accounts. And on the second account make sure it’s a class that can be all three roles DPS, heals and tanks. Get them together and then have the main character that you’re queuing get on a mount that’s a two-person mount. Have the one that’s on the second account get on the back of the mount, doesn’t matter what mount. Then when you queue for the group make sure your second character selects all three roles available. This will give you the best chances for getting in quickly.
Once you get in an instant queue, you will notice that the second character is still standing where it is. The reason for this is you can’t enter an instance when you are on a taxi. And a two-person mount, the back of it at least, is considered a taxi. So give it a few seconds, that character can now leave the group and you can re-queue for the new role.
The best part too is that the second character can do this again because he/she will not have a debuff. So you can use the same one over and over. They can just hangout and this is a good way to get yourself quickly queued for instances. When you have a lot of alts, this is a must have for holiday dungeons.