It's pretty hard to be creative if you're not passionate about anything.
I often talk to people about the things I love and am excited about, and some of them get this funny look on their face like I'm the weird one for being passionate about things. Or they'll say, wow... that's cool for you. I wish I was that excited about something. To which I reply, it's not hard... just pick something and get excited about it!
If I had the choice between having a conversation with a person who is passionate about something and a person who is passionate about nothing, I would always chose the first person. Even if what they're passionate about is something I know nothing about.
Passion is contagious. If you're passionate about something and able to communicate that affection to other people in interesting and engaging ways, then that passion will spread with time.
Many of us have this strange image of the bored and aloof looking artist who's impressed by nothing and unimpressed by everything, and we consequently feel like we're falling short if we're not like that kind of artist.
Let's do away with that image and that feeling, though. It's good to be passionate about things, because passionate people make other people passionate. Even if the odd person will look at you strangely for that talking about something that excites or intensely interests you, there's going to be more people who take an interest in what you have to say if you're passionate.
So the question is: what are you passionate about?