I hang in the right lane and do the speed limit when I can. My old Allegro was manufactured when the double-nickels was the nationwide limit. As a result, it doesn't really like to go much faster than that.
I've found truckers to be mostly courteous. I'm actually relieved when I find one traveling at or near the speed limit so I can tuck in behind them. I'll pass them on hills and they'll pass me going down. Never had any trouble. When they cut in too close the wind does upset the rig a bit so I slow down to widen the gap. I don't really see it as an aggressive move on their part.