Can't wait to get to the airport and hear them call for boarding:
"At this time we'd like to welcome all our slower passengers to the boarding process. Again, our slow, lazy passengers are welcome to board the aircraft."
Another way to do it. Open the doors on the other side of the room. Wait until half the people are there. Quickly close the door and open another door to the plane.
I usually get in the plane with the last people, as I'm lazy to stand in line, but I'm doing the boarding itself fast, as I have done it many times in my life. I see other experienced travellers doing the same thing.
"At this time we'd like to welcome all our slower passengers to the boarding process. Again, our slow, lazy passengers are welcome to board the aircraft."
<people board>
"Group 1..."
<etc>