Rakesh Kumar presented on Sixth Sense technology, a wearable gestural interface that augments the physical world with digital information. It allows users to interact with surfaces like walls and objects using natural hand gestures captured by a camera and processed by a smartphone to project digital information back onto the surfaces. Some applications include telling time by drawing a circle on the wrist, getting product information through image recognition, and zooming in maps using pinch gestures. The presenter concluded Sixth Sense can help integrate digital information into everyday objects without isolating users from the physical world.