Andrew Luck

The Nike Fuel Band is interesting - it measures your movements and how far you've walked and how hard you've worked that day. I prefer using when I travel. It's a fun way to see how far I've walked - how many steps I've taken when I'm walking around different cities.

Every time you log in to Facebook, every time you click on your News Feed, every time you Like a photo, every time you send anything via Messenger, you add another data point to the galaxy they already have regarding you and your behavior.