As far as the whole Catholic baptism/christening goes, I was baptized in 98,(Yes, I chose to become Catholic, and no it was not to get married, but anyhow....) because my mom is protestant and my dad is a non practicing Catholic...anyhow...I got three sacraments in one day...baptism, confirmation, and communion. As for calling it christening, I think it's just personal preference.
As for the whole Asian people standing closer, it's not just an Asian thing. I was at Disneyland Paris when I lived in France and the concept of personal space like we know it here just does not exist there. Perhaps it has something to do with the fact that there are a lot more people packed into a much smaller space.
It is also like that in the metro/tube in Paris/London, or even in movie theaters when the space cushion seat rule is violated. Case in point, I went to see a movie in France, I sat in a row all by myself in the theater...(relatively empty) and some dude just came and sat next to me, and I had no idea who he was. Anyhow, that is just the way things worked there.
It was the same on the metro, I could be sitting in a seat surrounded by empty seats and the seats near me would be empty and someone would always come sit right next to me. Maybe I just attract the strange people...