Synopsis
Two parents have left in care their autistic child at a special facility in hopes that they might be able to find a way to communicate with him.
Script
INSIDE FACILITY
We see the parents leaving the facility. The nurse is holding DAN's hand. Dan is looking at the floor.
"How about you and me go and see the Play Room, what do you say?"
The child seems caught up in something else. The nurse starts walking slowly up a flight of stairs.
"You know, when I was your age, I didn't like talking with people either. They didn't motivate me enough to do it."
FADE OUT and FADE IN to INSIDE PLAYROOM
We see plenty of toys on the floor, children playing all sorts of activities.
The woman crouches one more time, but this time we can see her cleavage. The child is looking a completely different way, but the viewer isn't.
"I never liked my parents staying next to me when I was playing. So I'll let you walk around and see the place for yourself."
The nurse leaves. ERIK looks about the room. We see kids playing with kendama, chess, someone making a white puzzle (shoutout to Death Note) and in a corner a kid is manipulating cards in a fascinating manner.
ERIK walks towards this kid and sits next to him.
BOOM, 14, is performing all sorts of flourishes. After a while, when he notices that ERIK is not leaving, he looks at him and hands him a deck of cards.
FADE OUT and FADE IN to ENTRANCE OF FACILITY
"It's been a while Miss Somerson."
"How is Erik?"
"Erik is more than ok. He has made a good friend here."
CUT TO the boys performing flourishes and the adults trying to communicate with them. Both adults just see two kids fiddling with cards in very amazing ways. AUDIO fades to the background, the viewer hearing a faint sentence, "I don't think this will help with his communicating."
The two children are talking through Cardistry Code - the first letter of each flourish performed is used to make a new word.
Tryptich + Uppercut + Revolution + Noire + "?" (Fan) = Turn?
Molecule + Isolation + Namlos + Erdnase Go Around = Mine
Sybil + Charlier + Orm + Rev2 + Emento = Score
Tectonic verb + Worm + Oakley + On the clock + Nova + Eko = Two One
A step further
You don't have to execute this exact script to illustrate this idea. You can have two kids cheating at an exam and communicating in the same fashion. Two ships talking through cardistry move names on the radio and the enemy listening confused to everything. You can have two lovers separated by a window discussing with each other.