Hythlodaeus is a man quite used to being overlooked in place of the sorcerer beside him, and while his gaze does flick upon Goro as he nears (and no doubt the ground shudders in response to each heavy step), it is brief.

There is interest within it, of course. It might be easy to think that interest would focus upon his physical form- as no doubt Goro likely had experienced, in both Cadens and here- and yes. It most certainly is noteworthy, but instead, he finds himself looking beyond.

The soul. That's always the first thing to behold, with any new encounter.
If Hythlodaeus likes what he sees or if he does not, he gives precious little indication of it in body language or expression. He simply looks, and then shifts his gaze away, focusing upon the other members of the entourage.

...Oh, but he does listen.