Instead of Cash App, I would highly recommend Wallet of Satoshi to get your audience started.
  1. Have you audience download Wallet of Satoshi (iOS and Android) then,
  2. Click "RECEIVE" in the app
  3. Click on "Lightning Address"
  4. Each user will have a unique Lightning address in the format "user123@walletofsatoshi.com"
  1. Ask your audience for the first 50 listeners to send you their Lightning address.
  2. You airdrop 1000 sats in each wallet for them to experiment.
Working with a Lightning address i.e. user123@walletofsatoshi.com is so much easier for a beginner than pasting invoices imho.
The thing is that in CashApp you can buy bitcoin for fiat. For Andy's audience they may be primarily interested in buying. Ideally the audience would go through the no-KYC path and you should definitely try explaining that. Reading through all ideas in #12106 gives you enough of options.
If there's no other way, then I'd suggest Strike instead of CashApp. Strike has better rate and no fees, only .2% spread. It also has better UX imho.
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Good point. On a related note, where did you find out that Strike makes a .2% spread? I've been wanting to research that for all of these exchanges.