Shrieky decides that he's glad he didn't ask about Tyrion's diminutive stature. That might have bred the kind of rapport between them which would require some kind of dialogue to open up between them about his being a Mermaid. As it is, instead, he just mutters a polite little: "I'm pleased to meet you, Tyrion", and jabs his finger towards a particularly iridescent dragon illustration.

"How about this one?" He steals a sidelong glance towards the short man sitting next to him.