Great idea!

From personal experience

the transaction in #sats (so instantly and quickly with #LN) in combination with the purchase of a product is revealing for someone who has no idea about #bitcoin.

He immediately understands that it is "digital cash"

You could set up 2 stands one across from the other. 😁

One will offer free coffee but with payment only in bitcoin. That's where the #plebchain would be (maybe also a banner 😆)

The other stand will offer free installation of a LN wallet with an initial bonus of as many satoshi as the price of the coffee (it will represent the #developers).

This way, at the next local market you can easily introduce them and #nostr

😂🤪