Guinea pigs communicate through a variety of sounds and body language. Learning to interpret these signals can greatly enhance your relationship with your pet. 1. Whining or Whistling: This sound often indicates excitement, especially around feeding time or when they see you. 2. Purring: A soft purr usually signifies contentment, while a louder purr can indicate annoyance or frustration. 3. Popcorning: When your guinea pig jumps around joyfully, it’s a sign of happiness and excitement. 4. Hiding: If your guinea pig retreats to a hiding spot, it may be feeling stressed or scared, so give it some space. 5. Chattering Teeth: This can indicate irritation or a warning, so it’s best to approach with caution.