If a guy starts whistling whenever we’re alone is he trying to avoid having to speak to me?

Literally whenever he passes me esp. if it’s just us alone briefly he starts whistling a tune and when he leaves he stops.

it’s like as soon as he sees me (if it’s just me in an area) he starts whistling at random (NOT CATCALLING) just random whistling

If a guy starts whistling whenever we’re alone is he trying to avoid having to speak to me?
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