When I was in my early 20s and being very social I remember how so many of the young JWs were kinda out of place when going out to a restaurant, not knowing what to order and how to deal with the bill once in came as one check etc. It's as if they hadn't gone out to eat much at all growing up with their parents. I would usually handle the check take the money and kick in extra to make sure the tip amount was correct.
I remember one time going to a Chinese restaurant where it was the norm for each person order a dish and everyone share all the dishes ordered by putting some of each on your plate. All the JWs there ordered only one dish, sweet and sour chicken. It was just stupid funny.