Make their whiskers quiver
like this
( valley, Wed 8 Sep 2004, 21:50, archived)

pffffft!
That's lully :)
(Fido Dido, Wed 8 Sep 2004, 22:00, archived)

that is the loveliest thing I saw all day

( but the hedgehog can never be buggered at all foreskin of the apocalypse, Wed 8 Sep 2004, 22:45, archived)