On start up, there is white/blue smoke, after that its fine.

What is your question?

When I start my car it seems like it takes a while for the car to turn over (only a few seconds but longer than i am use to), then when it does turn over there is white/blue smoke that only last for about 10 or 15 seconds then after that it runs fine. I should also say that it only happends when the engine is cold. Not sure what to do, just bought it and wondering what i should do. PLEASE help me out!