If you want to sound smoother in English, you need to pick apart the nuance in different words. It’s not just using vocabulary that expresses what you mean, but using vocabulary that sounds like how a native speaker would express the same point of view.
When you mix up the word choice, you’ll rarely reach the point of complete misunderstanding. But it’s word problems like these that hold you back from achieving complete fluency.
Let’s see if we can get a better grip on these verbs: look, see, and watch.