This effect called facial flushing is a common reaction to alcohol among East Asians.

VOA: special.2009.05.13

They looked into the cameras with a neutral facial expression.

VOA: special.2009.11.24

"When he selected his models, he had them audition to make sure they could do the facial expressions he wanted, that they could act out the body language he wanted for a particular picture."

VOA: standard.2010.08.09