The acrylic is in a rattle can. Really the basics are covered on the can instructions, but generally speaking:
Make sure the surface is clean.
Don't spray in excessively hot or cold weather or when there is a lot of humidity or wind around.
Do light, even coats in opposing directions allowing a few minutes for it to 'flash off' in between and build it up slowly.
Give it plenty of time to dry.
It's one of those things where you really just need to practice. Don't be too worried if you get a run or something, you can always sand back and re-coat, but if you are getting runs it's because you are being too heavy handed and putting the coats on too thick. As I mentioned it's pretty forgiving if you are patient and build up a sufficient coat to sand back and polish up.