lets just say If she texted first, then you added her on snap chat, then she snapped you a day later, would you contact her at somepoint? (this is after a hook up as well)
If I think you are an interesting person worth knowing, of course, not even hesitating, I would try to text/snap/contact you first sometimes!
if you (the guy) don't initiate contact, but flirt text and snap back pleasantly, are you really into the girl? if you don't really ever contact her?
If there are no efforts from one of the twi sides, I don't think there is interest,
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