Diffrentiating between a socially awkward guy from one with bad/sleazy intentions?

Socially/awkward shy types come off as a-holes, jerks, playing mind games when they are just insecure and want to love someone.

Whereas a schemer who has some ulterior motive (sexual/financial/social gain) isn't the boisterous "player" type may use subtle tactics. How to snuff them out?
Diffrentiating between a socially awkward guy from one with bad/sleazy intentions?
Diffrentiating between a socially awkward guy from one with bad/sleazy intentions?
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