Netizen makes fun of Louis Koo when he uses slide phone to chat

Previous mobile phones used to have many different designs such as bar, flip and slide phones and we seldom see such designs after the creation of smartphones. However, stylish actor, Louis Koo (???) is discovered for using slide phone lately.

Some netizen with sharp eyes take photo of Louis phone chatting by using slide phone during a recent event. Louis is seen covering his mouth when talking