The hood should have popped up a little bit after pulling the hood latch, now you must release it before it can be opened.

Under the hood, slightly left-of-center is a release lever that must be pushed to open the hood all the way. This lever must be pushed to the right, in the direction of the car emblem.

Once you successfully release the hood, you should feel it try to rise up. These cars all have solenoids that assist in raising the hood. Simply lift the hood up, and it should stay up without any intervention.