They seem to listen well.

For if it's not listened to by them,

They'll see the things I tell.

This might be one expert jest,

Yet friendly to viewers it is;

In this zippy type of poem

The word I wish for is ...

the riddle didnt didnt really give any clues... it just rambled on, using every letter of the alphabet, except, of course Q,U,A,C, and K.  i mean, is "quack" really a solution? how does it even remotely apply to the riddle? e.g., your great with patterns. most pple (including me) would not have guessed that. still, the sign language solution was exactly that: a solution. so i would have liked that one better.