I have noticed the same sort of thing... Many jw's attending work Xmas lunches/dinners etc. posting pics & gifts they received, but calling them 'end of year' gifts or 'end of year' lunches/dinners...
Also have noticed many jw's going out & receiving/giving gifts to celebrate the day they were born, but calling it their 'special day' rather than their birthday... Also seen many jw's tagged on fb by non-jw's celebrating Xmas & birthdays... It's very common here...