It depends on my mood. But i am a big fan of caps lock
Sometimes i yell at the code ("WORK DAMMIT")
Sometimes i am too bored to write something so i just smash my body parts against the keyboard ("UHDAKHFBJ")
Sometimes i want to know every value i am working with ("X: " + this.x + " Y: " + this.y + " Vel: " + this.vel + Grandma.cakeRecipe + GPS.myPosition + ...)
I do the last one. All of the time. Otherwise, I use exclamations: "Here!", "How did we get here?" (Typically my default for enum switches), "You hit your head!" (For my physics engine)