An infant smacking its lips to indicate that it wants food or drink is an example

Gesturing

Explanation:

Infants tend to trust and depend on their care givers for almost all aspects of their life and requirements. Gesturing is one of the early development signs and infants learn to communicate their requirements and feelings through gesturing when they are about 9 months old. If this development is delayed then they might need more time to develop language and speaking ability as well. The example provided here is one of the prime examples of infant gesturing as food and hygiene are some of the basic needs of an infant which they learn to communicate through gesturing early on.

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