OP can just tell the little girl it means she is telling her that she is number one.

21- Then the girl would probably start flipping people off all the time

That comment was number (*.*),,|,,

Once while visiting some cousins in Georgia, they taught my little sister who was young at the time how to flip the bird saying "this is how you say hi in Georgia" XD they told her to flip off passing cars so that they would say "hi" back.

Who will probably threaten to sue

If the mother try's to sue her, sue the mother for suing you

Hell, sue her lawyer for taking the case, the judge for presiding over it, and the stenographer for typing too damn loudly. You know what, screw it, go american and just sue everybody.

Ca.... can I sue the president?

That shouldn't be something you need to practice for

The OP obviously needs it.

I don't think a little girl would find it funny

He/she tried to cross her fingers but the index finger lost grip of the rude finger. That's probably why the rude finger was left exposed like that XD. Or OP is mentally affected by retail like you said.

Rude finger beckons little girls to enter its web of sin but don't go in.

But 16 that only works if op does index over middle instead of the reverse...

Hence "I didn't do it properly"

I'm trying to cross my fingers trying to achieve what OP did, not managed to though. And even though OP didn't do it properly, flipping someone the bird is quite a lot different than crossing your fingers.

Spastic Finger Syndrome. When you go to slide your index finger under the middle one, it folds down instead, leaving only the middle finger extended. It's so gratifying to have an opportunity to share my encyclopedic knowledge with the little people. No, thank YOU!

I cross my middle finger over my index finger so I have no problem crossing properly and can't imagine how someone messes that up.

Go home, you're drunk.

I wonder how long you sat there singing that to yourself to make sure you got it right.