There does appear to be somebody controlling Baby Groot directly as he is responding to Star-Lord’s statements with a multitude of infections on the standard “I am Groot.”
A new video from theme park blog Inside the Magic shows us the location for the Guardians of the Galaxy photo op with Star-Lord and Groot.
He is a tiny audio-animatronic, standing on top of a computer console, looking like he’s getting ready to plug in a sound system as he does at the beginning of Guardians of the Galaxy Vol. 2.
Baby Groot is, of course, something a bit more involved.