We had a couple come and sit at our table in a cafe one Saturday. Their drinks came to our table and everything. The entire 1st floor was empty.
I may have made absolutely no effort to stop the DC from going near them and bought both a 2nd hot chocolate to provide extra sugar and mess.
If they'd asked first it wouldn't have been weird.
I was absurdly pleased when the lady left one of her gloves behind, and I moved it.