The door opens slightly and a head pokes around it to take a look into the room. Just a head, there doesn't seem to be any suggestion of shoulder or body beyond that like there would be for someone who can't extend their neck a sizable length.

Brainiac 5 pauses once he sees the pod is already occupied and his eyes dart sideways for a moment in a surprisingly nervous gesture.

"My apologies, I thought this pod was empty," he says, before retreating a little. However he's a little curious about the expression on the other's face and the rest of his body comes into view, allowing his neck to return to a more human length.

"You seem... perturbed," he observes.