You misread my post. I know why you would nudge in real life, I just don't know how to effectively nudge side to side in real life. I try pushing and pulling and most tables don't even move.
I'm not a big guy and have always wondered about this. There's a recent video of someone playing Wizard of Oz who seems to effortlessly nudge left and right regardless for the machine's actual weight. I can't tell if I'm not pushing hard enough or the machine really is that heavy.