How do you fuel up?

[mjpark_imp]

So I question like this came up on another general motorcycle forum I read. Do you fuel your CB11 on the side stand, on the center stand, or sitting on the bike with it upright?

It never occurred to me to do it any differently than on the side stand with any bike I've owned. I don't have the manual on me, but does it say anything about this?

It probably doesn't make a difference which way you do it, right?