It helps if the dollar bill is new and crisp.
Use the surface top to create pressure in the folds. The surface will help you hold the tightness of the fold.
You want to preserve your dominate hand to maneuver the opener. Position the thumb that’s holding the bottle against the cap to create pressure for the bill.
Continue applying pressure until it pops off. [4] X Research source Practice at home before making any wagers at a bar.