Start underneath the roof on the left side. Work up to the lip of the roof, traverse to the right along the roof, and then follow the crack back left to the top (apex) of the boulder. This sounds confusing, but makes a lot more sense when you are there.
On the Grape Ape boulder... Start underneath the roof on the left side.
This climb is a highball. Your best protection is to be solid at the grade and have a good head. A 2-3 pads and a spotter sure doesn't hurt either.