The other day Marion and I were out running errands. Marion was overcome with holiday spirit (or bored out of her mind while we waited in line, however you look at it) and began to sing. She sang "Santa Claus is coming to town" and "Somewhere over the Rainbow" which was then followed by loud "Happy Holidays!" directed at fellow shoppers.
In Switzerland we would have gotten a ton of nasty, disapproving looks.
In our local jewelry store and Target Marion received thanks from people for brightening their days, smiles, and some spontaneous singing partners.
I barely noticed the crowds as a result. :)