how do I change the dome lights?

My old Saturn had a screw holding it in place. But some just have clips that hold it in place. If it is a clip style, some will have a small area where a screwdriver can be inserted to push the clip in to release the light. The other style would be just more of a pull really hard until it comes out. I would recommend looking on YouTube to find a video of someone doing it on the same style of car you have, just for reassurance!