If a guy stops talking to his friend mid-sentence when he sees you does he like you?

I mean... this guy he doesn't really display very strong signs of liking me. Like he didn't even know my last name. But he just seems like someone who doesn't overthink.

Anyways I saw him once while I was walking and he stopped talking mid-sentence. I narrowed my eyes at him playfully and walked away.

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Guys why would he do this? I don't get it
If a guy stops talking to his friend mid-sentence when he sees you does he like you?
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