We went over to a friends last night who threw a big party playing all kinds of board games, and a game of Jewish "charades". It wasn't specifically called a "New Year's" party, but people did wish each other Happy New Year.
An interesting story came out of it though.
We were playing one game when someone came up and said that that game was responsible for him wearing a kippah. Turns out about
10 years ago he was playing it with his children, and who ever lost had to do something for a week that one of the players chose.
He lost and his son insisted that the father wear tzitzit, a kippah, and lay tefillin for a week. At this time the father was secular and managed to bargain it down to just wearing a kippah for a week. He was very self conscious but did it any way. So
one day he got in his car to go to work and thought, "hey, it's been a week, I don't have to wear it any more". Then he realized that every reason he had used to not wear it before were no longer valid. No one attacked him, people at work didn't care, no one stared at him or pointed at him. He's been wearing it ever since.