Add to that the fact that it's a time out of a day when you're supposed to be having this great big family celebration, and the kids are moaning, it's hot, and you're stressing about that unattended dinner in the oven ... it's not surprising people start wondering why all this fuss.
Well, let me say "welcome", and be assured that there's no subversive tactic going on. The regulars you meet are all here for another reason ... they simply are remembering where their life as a Christian actually comes from. And all we'd like to say is, look past our strange rituals and know we're here for a person, not an institution.
Above all, have fun, because this is a celebration!