I think Instagram is the only social media where you can truly fake a high SMV. You should have a solid number of followers though (aim for 4 digits+), and get some likes (aim for 3 digits per post). So figure out a way to market yourself, share lots of content... you can get a handful of followers per half-cool post. But even then it doesn't matter if you seldom use IG, if it's only for a cool feat every once in a while... that'd be congruent with a lower amount of followers.

Personally I couldn't care less about social media. Never used Snapchat. My Facebook is for my very close friends who all live overseas, about 20 people. I post every blue moon on IG, started using it in March and only have 150 followers. Even then, I got girls with thousands and up to 150k followers showing interest in the DM. I recently had a guy on Reddit PM me that my IG is life goals. So it's all about faking SMV.

Note that if you actually are high SMV the leverage from IG is even better... super obvious okay. I think a lot of people realize that Snapchat is retarded and the Instagram stories are enough to show off a good social life. You've got good looking and funny friends who like to go out and enjoy something fancy some time, share it, you'll get stalked. Use that well and pull hot girls.