A:
when you bring the hook point all the way through the bait...and then just barely put the point slightly under the surface of the bait...
I like EWG hooks for this...as the barb portion lies flat against the body of the plastic...and it's real easy just to slightly bury the point back into the plastic...
on the bite, it releases and is available for hook ups...
Pretty much rig all my plastics this way...a similar approach is 'texposed'