Dumb question, stackers: someone sent me a nice "DM" by making a LN payment to my SN wallet. If I want to reply, can I click on the barcode of the invoice and send some sats back, along w/ a message?

I've exchanged DMs like this before, but I always knew who I was messaging, so I just looked them up and paid that way. That's not the case here, and I don't want to send any sats into oblivion :(