The Personal Robotics Lab at Cornell University has churned out a machine that can, among other things, refill your coffee cup and hold the door open for you.

This real-world Rosie the robot isn’t clairvoyant — just clever. Unlike simpler robots that can carry out only preprogrammed tasks, this robot observes a person’s movements and makes predictions about what they might lead to next.

By breaking down complicated activities into smaller components, the robot (which still lacks a name) can accurately predict what action a person is performing. So if it sees you reaching, pouring and lifting, it knows you are probably drinking something.