Have a friend on a different server? If yes and you would like to purposely run heroics/level I think you would like this. Using the Real Id I have came up with a way you can actually get your friends across servers in the same pug. I am quite sure you can even level an alt this way using duel box on a different server.
Steps: (thrall is an example server as well as ysondre)
>you are on thrall and you are talking to your friend on Real ID you guys want to level together being the same range level.
>1st guy ques up for a dungeon preferably the lower server populated guy
>guy one befriends someone on guy 2 server in the group
> if there is a guy in the group no one likes kick him and get the guy to invite your friend or at the end when someone leaves get him to invite first (possibly with a green as payment if necessary)
>you and your friend/alt are now in a group and can reque.
Happy Cross Server leveling/friend leveling.