A life, reduced to a data set
I would be most interested to see the pleasantries and exchanges tab of my life. I believe that this would be mostly boring, but it would be interesting to see who I greeted most, depending on relationship status, current job, current living situation, etc. I work at Cafe Plaid on Campus Corner, so to see the sheer number of people I have encountered over the past year would be staggering.
I don't think recording this data would in itself taint the data. Maybe in the music section I would be a little more aware of what I was listening to so as not to embarrass myself.