I was on UA891 LAX-NRT on January 14 and sat at 17H (777, E+). After the first meal was served, one male flight attendant brought me a cake (I guess that was the dessert from business class meal) and asked me any drink I'd like to have. He talked to me by calling my last name and thanked me being 1K. I was quite shocked. He also asked why I didn't apply upgrade. Well, my ticket is non-upgradable for SWU, and 17H is good enough for me (there was a equipment change). I noticed this male FA also gave cakes to few passengers (I bet they are all 1K) who sat close to me. It's really a nice touch ^