Wtf does it mean when a guy responds to your text with "HEYO!"

Anonymous
i texted him to see if he wanted to hangout...he texted me back with "HEYO!" then said he did. he definitely acts like he likes me in person, but this made me feel like he was treating me like one of the guys or something? thoughts?
Updates
+1 y
Guys: would you respond with "HEYO!" to a girl you were interested in?
Wtf does it mean when a guy responds to your text with "HEYO!"
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