Just got upgraded from J to F. Sitting in YVR lounge drinking vino and giggling like a school girl. Apparently 889 is oversold (I had 86A) so the lady was looking for suitable candidates to move to the first flight 829 and upgrade. Standing in line she looked me up and down, approached , and offered. I guess I looked suitable! No mention of Status or mileage club. She was doing it by class ie Y>J, J>F and how the individual was dressed, (or perhaps acted).