How do you use chalk paint? Is it a two step project and ?

It depends upon what you want to use chalk paint for. If it's on something like kitchen cabinets - use a gloss or semi gloss latex paint.

Annie Sloan is a really nice chalk paint. Clean well and paint. Can see on video on google.

https://www.anniesloan.com is the best! I have used Valspar, etc... but this is the BEST paint and a small can will go an unbelievably long way!

Annie Sloan is a bit $... but a little goes a long way. Have some fun on her website! https://www.anniesloan.com

I love chalk paint and use it for many projects. You can check out one of my projects here, along with some of my tips http://beautyforasheshome.com/thrift-store-table-flip-chalk-paint/