What sound does a pet rat make when its.....?

Question

what sound do rats make when there happy, sad, or angery.

please post all you know :]

Answer 1

Exactly what Courtney said.  

When rats brux its usually accompanied by eye boggling (eyes bulge out of the sockets) but thats not a bad thing.  

Link below is on rat behaviour - has sound samples of their different squeaks as well

Answer 2

Rats do something called bruxing when they're happy or nervous. You have to determine which is it! But bruxing.. it's hard to describe! Sounds like their clicking, or clucking, or grinding their teeth!

Go on youtube and search "rat bruxing" and people have lots of videos of their rats doing this!

They can squeal or squeak very loudly when afraid or fighting with another rat, although this doesn't always mean they're hurt.