Finger Gun/Playing With

Basic Trope: A character imitates a gun with his hand
 * Straight: Bob uses his hand to mimic a gun
 * Exaggerated:
 * Bob uses his Finger Gun almost exactly like one would use a real gun, way beyond blowing on the "barrel" and Gun Twirling
 * Alternatively, mind bullets. Well, if fired from a Finger Gun.
 * Justified: Bob does it behind his coat to make look like it's a real gun that he's presumably hiding so other people don't notice.
 * Inverted: Arm Cannon is used to mimic a hand.
 * Subverted: Bob's "gun" actually fires
 * Double Subverted: Bait and Switch Gunshot
 * Parodied: Apart from the Finger Gun, there's also imaginary bows and arrows, throwing knives, and bazookas
 * Deconstructed: Bob's playful attitude towards guns leads to disaster when he gets his hands on a real one.
 * Reconstructed: Bob is told that the gun is not a toy, and he learns to use it responsibly, while still using a finger gun playfully.
 * Zig Zagged: Bob realizes the futility of using a Finger Gun, switching instead to his trusty Finger Sword.
 * Averted: Bob makes a finger gun but uses it to make the letter "L".
 * Enforced: Bob suffered a traumatic hand injury in a plane crash in the wilderness; because it went untreated for a long time the joints fused in that position. He was sensitive about it for a while, but he learned to adapt.
 * Lampshaded:
 * "You ARE aware that those are just your fingers, right?" "Huh?"
 * Don't move, or we'll shoot you with our INVISIBLE GUNS!
 * Conversed:
 * Bob, instead of treating his finger gun like a real gun, treats his real gun like a finger gun.
 * (firing a pistol, shouting over gunshots) BANG! BANG! BANG!
 * Invoked: ???
 * Defied: ???
 * Discussed: ???

Back to Finger Gun or I'll use this. Don't think I won't!