Here's the best way to do it. Don't pump before you go out. Your pump will diminish and you'll shrink at an inappropriate time. Girls will be looking at you at laughing to their friends and saying "Check out the tool over there with the deflating arms. Looks like someone let the air out." Instead , go into the mens room, lock yourself in the stall. Pull out those stupid rubber band exercisers that you stole from the douchebag trainer..you know, the jackass that makes everyone exercise on the big rubber beachball. Now pump out some curls, side laterals, and overhead tricep extensions. Then wedge the rubber band in the doorway, pump out some cable crossovers...and you're good to go!