Two of the mothlings take interest. They hum back in an approximation of the melodic contours of Eddox's speech, and wriggle their tentacles in wobbly imitation of the signs, following that up with sign "babble" playing around with variations on the signs that Eddox used.

[If it helps, moths can detect distribution of masses remotely, which passes as "sight," and they can hear extremely well. Their "sight" is in all directions and works even through barriers; it's based on gravitational wave detection ASK ME WHAT MY HUSBAND DOES FOR A LIVING. However, moths don't seem to be able to see color.]