I'm not normally a customer so I consider it my first time, I wasn't sure what to really do but I wanted to add stuff to my ice-cream but got a pre-made off the menu one. It was a little busy so the staff weren't able to really explain to me how this works.
I felt it a fluke so I went again at another time and was able to get a better understanding and my interaction and order were fine. I'd come again.