Take both notes, fold them together and place them in a match box, then place it under a glass or under your phone. Or simply place the folded bank notes under your wallet.
Make sure you put them in a place that does not belong to the other person.
Refer to the bank notes as "these notes" or "the notes" but not "our notes" or "your and my notes”. You need to make them ownerless.
I’m putting these notes in this matchbox and under this glass right here… Everyone likes a good deal right?
Give the spectator a smile and offer them a deal they can’t refuse.
Here’s the deal… would you like to buy this matchbox for $150 … which means you pay $150 for $200? Cash in hand.
Your spectator should be eager, usually forgetting that one of the original two notes is their own note.
It’s a great deal, right?
Take their cash and hand them the booty from the matchbox.
Spoils go to the victor, well done on your investment.
Some extra lines you can try
- I guess it’s your round?
- Money talks, and yours just said goodbye.
- I didn’t know you were so shrewd, dude.
- Maybe you can now afford to give me a light?
Explain to them how it works, that they’re actually paying more for less. (As you should every time.)
Can I put you in touch with a good investment person? You might need it.