My research...

[BenRea]

I did a little show for my crew team at my highschool because they are big into hacky sack when spring comes around. They were very very amazed overall, they of course liked my ducking mooves, my long strings, and my rev whirls. but what was very surprising was that when i did a far pickup they all went NUTS, they go woahhhhh what was that!!!!! and i just responded...nothing too special actually. I also did a few strings with pixies and stepping sets in them and they didnt say a word at those....they said i dont even know where that went, i couldnt follow it. So i guess my conclusion is, stick to simple moves, the AMAZE the untrained eye.

[hakkpakk]

I noticed even doing a pendulum gets everyone going crazy.

[jay7]

Anything with quick double dexes (DATW...etc) and any sort of spin, or ducking, or rake seem to look extra special. And then the moves that just show you have control, suck as the clipper-sole kick-clipper, seem to make them ooh a little bit.