RIBA responds to operator's voices such as "Hello" and "Good-bye".

When the operator says, "Let's shake hands", RIBA stretches out its hand. After the operator grasps the hand, RIBA detects contact using its hand sensor and starts to shake hands.

Lifting up motion is evoked by the operator's voice command. The motion is adjusted and suspended or resumed by touching on RIBA’s tactile sensors.

RIBA’s position can be controlled by touching on its tactile sensors. Its base has omni-directional wheels and can move in any direction.

RIBA can lift up a human in its arms from a bed and lift down to a wheelchair. Contact on tactile sensors is used to adjust these motions.

RIBA can lift up a human from a wheelchair and lift down to a bed. These functions greatly reduce the physical strain on the care worker.