Bug f0und in my friends hair. What is it?

Was there only one? → lice come in multiples

Any itching for days? → lice itch builds over time
What lice actually look like (so you know)

Tiny (sesame-seed size)

Gray/tan

Flat, slow crawlers

Eggs (nits) are glued to  hair, don’t flick off

Best next step:
If you can, upload a clear photo (even a phone pic). I can tell you way more accurately in seconds.
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