How you go about getting a shuttle bus from LAX to van nuys

Look for Flyaway shuttle going Van Nuys, they come around every half hour or so. They'll require payment at Van Nuys station after arriving, there are kiosks to do that, they won't let you out without payment

Just go out of baggage claim and find the sign for Flyaway bus. Wait for one that says Van Nuys. If you are just going the one way I'm assuming they will charge you when you get off the bus.