The popular opening phrase used in texts by socially awkward guys to seem vaguely casual and interesting without being excessively needy and extra; there is also the clever use of an emoji to convey a playful boyish spirit. It is important to note that this only seems cool to them and not the intended recipient of the text
Normal People:

N: Hey, how's it going?
M: Not much
N(internally): I'm going to die alone and unloved

Socially Awkward

N: Hi, anybody there :P ?
M: Not much
N (internally): I am a cool, funny and valid human being
by Parasitical Pineapple October 23, 2017
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