The friendship bracelet at Sacré-Cœur
Montmartre, ParisVery commonSomeone on the steps below the basilica strikes up a friendly conversation and loops a woven bracelet around your wrist or finger while talking. Once it is knotted on, the tone changes and payment is demanded, usually with several friends nearby.
How to avoid it: Keep your hands in your pockets and keep walking on those steps. If a bracelet is already on, the knot cuts easily — walk toward the crowds by the funicular rather than arguing.
Sources Paris tourist board on street scams r/ParisTravelGuide discussion