Elephants communicate through a variety of body language and gestures. They use their ears, trunk, tail, and posture to convey different messages to other elephants. For example, flapping their ears can indicate excitement or aggression, while a raised trunk can signal alertness or curiosity. Additionally, elephants use tactile communication such as touching each other with their trunks to show affection or comfort. Overall, elephants have a complex and nuanced system of nonverbal communication to interact with each other.