Go with the flow, be cool about it. Don't be too desperate; if it's actually just a smash you want.. then act interested in her life and what she does.

Ask her about her days and stuff but that's my way on smashes show that you care; smash and run.

ASK HER TO COME FOR FOOD OR A DRINK AT YOUR PLACE USUALLY WORKS

Speak for a few weeks or so and I guarantee if you play it right you'll be in the bedroom in no time.

Ask her to come over and have some boring movies on. Then after like 20 mins into the movie go in for a kiss and hopefully it turns out into a makeout seen and if you can't get it from there my friend then you're not getting anywhere. Play it smooth don't ever let her know you wanna smash until she does.