Not a lame question! Sometimes those 'training' videos can be more confusing than helpful - everything looks so easy when they do it.
Suprapubic pressure is just what it says "pressure"! I don't think 'gently' is a term that comes to mind in conjunction with it. It involves some force, and is usually used in combination with the pt pushing while in the MacRobert's position, and while gentle downward traction is being applied on the fetal head.
If you look on
http://www.brooksidepress.org/Produc...erDystocia.htm
they do a good job of explaining the process, and details surrounding it (you can also see in one of the pictures that the person applying the pressure is pushing pretty hard).
Hope this helps a bit!