Hookup Help??

So I’ve never had a true hookup, but I met this guy on OkCupid and we’re both just in it for sex. He added me on Snapchat and we sent some sexy things💁🏼‍♀️ he then said he’d let me know when he’s free to hang out. I then sent him the below pic and he never answered... so now I’m just not sure he’s into me? I

s it chill to keep snapping him normal things and sexy things in the meantime? Or is his unresponsiveness a hint to maybe not snap again until he does? Usually I’m the play hard to get/tease type, so this is super new to me 😂