If a guy caresses their stomach while talking to you, what might be going on?

Wondering because there’s a colleague who does it literally every time the two of us talk alone - no matter if before or after lunch and no matter the time

They’re nervous/I’m making them uncomfortable
They probably have some stomach related issue - hunger or stomach ache
They’re sexually attracted to me
Select gender and age to cast your vote:
If a guy caresses their stomach while talking to you, what might be going on?
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