For this looking outwards, I chose a work by Aaron Sherwood and Mike Allison, in which a projection is shown on a piece of stretched spandex - when a person presses against the spandex, the visuals interact with their hand, causing a flame-like ripple effect to form. Some of the visuals work better than others, but I liked the idea that the user would actually feel something touching them as they press inward rather than a projection simply interacting with the space around them.
Firewall from Aaron Sherwood on Vimeo.