Happy or sad

Question
How do i know if my Guinea Pig Moe is happy and is there any sign that i can tell  

Answer
Hi Lindsey

General signs are good healthy appetite, alertness and generally looking well. The ultimate sign of a piggies happiness is called popcorning where they little jump in the air and do a flip. Some pigs never do this though, and this doesnt mean they are less happy.

I hope that helps

andy