In Argentina,rotating one's index finger around the front of the ear means "you have a telephone call",but in the United States it usually means that you are suggesting that a person is "crazy".Both of these gestures exemplify:

Question

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These gestures are examples of symbols, which are nonverbal ways of communicating ideas or concepts. The same gesture can have different meanings in different cultural contexts or linguistic communities.

In Argentina,rotating One's Index Finger Around the Front of the Ear