While making an appearance with Jinyoung as JJ Project on SBS PowerFMs Lee Guk Joos Young Street, JB had a unique worry to share.
During the broadcast, a listener sent in a comment that JB looked really different when he was smiling, and when he was not.
JB expressed, The difference between when Im smiling and when Im not is so great that I sometimes get asked if Im angry [if Im expressionless]. Its to the point I have to worry about how to smile. He also revealed, Once, a fan even asked me if I was angry at a fan signing event, even though, if I remember, I had been smiling at the time.