Kirobo remembers the face of Koichi Wakata, an astronaut who arrives on the ISS sometime later, and when he sees him, he greets him with "Hello Mr. Wakata!" When his partner speaks, Kirobo chimes in with realistic gestures, saying "Umm!" or "Oh really?" If his partner says things like "This is difficult!", or "I don't know what I'm going to do!" Kirobo guesses his feelings by using artificial intelligence and offers words of comfort like "That's tough, isn't it?