SM Motion Capture (1A): Choosing a Semester Activity

I've thought of a bunch of interesting activities that I enjoy, but that may not fit the mold in mind for the project objectives (if approved could produce some interesting problems and products). So feedback would wonderful before I dive in too heavily in one by my own discretion. 

So, things I like to do (that require other observable activities): "people watch" (eh?), which led me to "ride public transportation", "eat/dine" (open?), "do math/calculate", "moped" (is that a verb?),  which lends itself to "travel" in general I suppose (too open?), "go to the doctor" (its weird, I know), "row", "do laundry", "shower", "grocery shop"...

And what about things I like other people to do, but can't necessarily do myself: "ventriloquism", "box", "pogo"...

HELP!