What I enjoy the most is talking with the users. I think empathizing is harder than it sounds; I enjoy the moment when the person lets me understand through their perspective what they want, what they need, what they are struggling with. That's what makes me love being a UX/UI designer.
When coming to the design, there is no such thing as a bad idea or a stupid question. Everything starts with "How might we" or "What if". I know I want to improve a product, I just don't know how in the beginning. By asking the right questions, I could define what I think is a great idea and produce better products.