Q: The average adult will see this 40 times a day. What is it?
A: They will encounter a unique face.
We show that an adult observer encounters an average of 40 unique faces during a typical day, with familiar faces accounting for approximately half. Our findings showed that 77% of the total face exposure was familiar, and 70% was accounted for by the top five most frequently encountered identities. These results may reflect the longer encounters typical of social interactions with familiar individuals.
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