He loves having fun!
One of the things Kimi is blamed for is that he doesn’t smile much. Even when he is on the top step of the podium, all he does is give a very faint smile and no expression of jubiliation. In fact, he is more concerned about drinking the champagne rather than spraying it on the others, as is the tradition!
But contrary to poular perception, Kimi Raikkonen does love having fun. It is just that he likes to do it privately, and not let the Media navel gaze at what he is up to. If you search on YouTube, you would find very less videos seeing him party. But on the ones you do, you will find him very happy.
Even here, he seems to be having fun while trying to tell Natalie Pinkham what to do!