Actor Lee Jong Suk's strange way of showing affection was revealed on the latest 'One Night of TV Entertainment'.

Lee Jong Suk along with the cast of 'No Breathing', Seo In Guk, Park Chul Min, and Girls' Generation's Yuri, was interviewed on the show, and Yuri shared a funny story from the movie filming. 
 

Park Chul Min first shared that Lee Jong Suk likes to greet him by hitting his bum. Lee Jong Suk explained, "He has a firm , so I wanted to hit it at least once." Yuri then added, "After making an NG, Lee Jong Suk bit my arm," to which he replied, "It's a sign of closeness."