Obviously this isn't as fun as a story if it doesn't work out and to be honest, I'm not sure that I've never seen it not work. So here's how this works. The first baseman shuffles over to the pitcher, has a little chat and secretly takes the ball back with him to first base. When the runner take a foot of the base and starts his lead to second, the first baseman just reaches over and tags him. BOOM! The hidden ball trick prevails again! I love this video because the runner has no idea what's going on and neither does the play by play guy. Check it out. If you love baseball, you will appreciate this.