How do you share the sweet spot?

Speakers with wide dispersion have a wide sweet spot, but usually need more room and/or better room treatment.

Right now, Magico and Revel are state of the art in this department.

I always have my guests sit in the sweet spot. For them its other-worldly. For me its a trip because I seldom listen from anywhere else. 

With couples the best way to share is the woman sits between the mans legs leaning back with her head on his chest. With guys you sit or stand directly behind the sweet spot with your head close to the same level. To sit in a chair place it directly behind the sweet spot. I've also had people lay on the floor leaning back against the sweet spot chair ottoman. 

Basically anything that puts you on the centerline is better than being off-axis. But I've had parties where people liked to sit along the walls, because the bass is so freaking awesome. Not smooth and even like in the sweet spot, but awesome, and not everyone is a nit-picky audiophile!