Tgrayson did an awesome job explaining static versus dynamic pressure. Here is how it relates to lift. Like he said, the airflow on the top of the wing has sped up a little, which converted some of the potential energy into kinetic. Or in other words, some of the static pressure was converted into dynamic pressure, and the static pressure on the top of the wing decreased.
On the bottom of the wing the airflow may have sped up, slowed down, or stayed the same, depending on the design of the wing, but it doesn't really matters. All that matters is that compared to the top of the wing, the airflow on the bottom of the wing didn't speed up as much. So more of the potential energy on the top was converted to kinetic compared to the bottom. Or in other words, static pressure decreased on the top of the wing more than it did on the bottom of the wing.
Now you can kind of think of dynamic pressure as acting along the direction of the moving air, and static pressure acting in every direction. Since the air is moving parallel to the surface of the wing, the dynamic pressure isn't really affecting the wing. (For the purists out there, this is a technically incorrect explanation, but I'm using it as a simplification). But the static pressure IS pushing on the wing, because it acts in all directions, not just in the direction that the air is moving.
So how does this generate lift? Well on the bottom of the wing, the static pressure is higher than on the top of the wing, and this pressure on the bottom is pushing UP with more force (or more pressure, actually) than the static pressure on the top of the wing is pushing DOWN. Hence, lift--- or at least a layperson's explanation that should work for the level of the private pilot...
