There's a tab on the driver side hinge that goes in from the front. There's a thumb rest that you push down to disengage the first stage lock. Pull down on the hood slightly, release the tab, then lift the hood beyond the tab. The passenger side tab will stop you from going further. Pull down the hood slightly but not enough to re-engage the driver side tab, release the passenger side tab, then lift the hood as far as it will go. It actually goes a little overcenter and you'll hear a tab engage on the driver side.
Getting it back down is a two stage process because it'll lock (or should) at the first open position. Good safety feature.
If you're doing this indoors, make sure you have ceiling clearance to do this.