Info -
Guinea Pig Language

The Guinea Pig's Behavior What Does It Mean?
Touching each other's nose Greeting
Acknowledgement
Murmurs
Gurgles
Grunts
Contentment
Comfort
Shared feelings
Stretching Relaxed comfort
Jumping Happiness
Exuberant delight
Squeaking Pain
Fear
Loneliness
Begging for food (express towards humans only)
Warning
Cooing Calming sound
Reassurance
Sitting or standing up Begging for food
Standing straight up on all fours Making an impressive statement of power
Tilting the head up and at an angle Signaling strength
Lowering the head
Growling
Fear
Offer of peace
Rattling
Hissing
Teeth chattering
Aggression
Warning the "enemy"
Trying to impress
Growling
Grunting
Rattling
Male mating sounds
Mouth wide open,
Showing teeth
Female rejects male's advances
Stretching the head forward Watchfulness
Alertness
Retracting legs under the body
Pressed against a wall
Helplessness
Need for protection
Turning rigid Playing dead to distract the "enemy"