In Special Agent J, Jolin showed off more than acted. Except for the part in the second scene where she showed her happiness which was relatively sincere, the rest were not very convincing. Of course, we cannot require Jolin's acting to be of the top实力派 (strength school) standard. She did a pretty good job already. Acting is a hard profession. After all, you have to deceive so many viewers. That definitely requires quite some convincing power.