Contacting someone you barely know after 10 years?

Would it be weird to message a guy whom I barely spoke to over 10 years ago? We've only exchanged a few words and kissed once when we were both drunk about 12 years ago, but he always stares at me when we pass each other somewhere. We find each other attractive, that's for sure. Would it be odd to ask how he's doing after such a long time and maybe ask him out? We are basically strangers, but he definitely knows me. I know it's kinda stupid but still...

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Is it really that weird to reach out to someone to ask how they're doing? I wouldn't obviously ask him out straight away.
Contacting someone you barely know after 10 years?
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