The phrase “Who’s this?” is often used when trying to identify an unfamiliar person, either in person, through a photograph, or when receiving a call or message from someone unknown. It indicates a need for clarification or identification. In scenarios where this question might be asked, one could approach finding the answer in several ways: looking for context clues, asking the person directly for their name, checking caller ID, or reviewing any available background information. These steps help ascertain the identity of the individual in question.
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