She hides a camera in her chest to see if people are looking her in the eye or not

Nestle Fitness made this video of a busty woman walking around cleavage around the City of London. A camera is hidden in her cleavage so that you can see whether or not people are looking at her chest. The concept may seem a little insignificant but the video is really worth listening to because at the very end, you really understand the purpose of the experience! (via VLOG)