When they saw him, the golden headed one moved to approach. It opened a central mouth and displayed a set of polished white teeth that had clearly never been used to crunch through rock. Gashvorn didn't need the sudden chime of his translator turning on to tell him it was starting to speak. The mouth opened, and although a little gas did come out, the speech wasn't packets of gas he was supposed to ingest, or muscle movements he was supposed to identify, or even simple radio waves. Vibrations were pouring forth from the human, crossing the gas to buzz against his skin. These humans spoke by making the very air dance their message over to you.