You can to print a brim, a thin layer on the bottom connected to the model. This will help hold it in place. Since it is thin (one or two layers) it will not warp itself.
The brim is not the same thing as a raft. A raft is under the model. The brim is on the same layer as the models bottom layer but outside the model. It looks something like this:
I assume that you use a heated bed if you have one?
Also, it is imperative that you get a good first layer. Calibrate your machine carefully.
Going to also say you need to provide us with a ton more information. What settings, what temps, what plastic.
That said the best thing I can recommend is doing a Raft for your print. Adding a Fan to your printer. Making sure your heated bed is on. I also like to use gluesticks for PLA, hairspray or Kapton for ABS.
Comment on my answer once you provide more information and I will improve my answer.