Terry is constantly climbling, running, screaming and knocking EVERYTHING to the floor. When he’s not destroying objets, he’s drooling over them. Try to stop him, and baby Terry will bite you. He has small teeth, but still hurt! Fortunately, Terry is also easily distracted by shiny objects and baby Korvo.
Korvo just goes around calmy with a silly smile, but don’t get fooled: he will search for weapons and try to kill everything at his reach at the declaration “Kill all humans!” (or more accurately, “Pfill aw hoomans!”). Take his weapons and Korvo will CRY LOUDLY until you let him have his fun again.