Give verbal cues as well, by saying things like, "Yeah" and "Uh-huh." It can also help to reiterate the person's feelings to clarify you understood. For example, "I hear that you're feeling very tired lately all the time, and that's very frustrating for you." Be careful to avoid seeming like you are pitying the person. Aim to show empathy for the person rather than sympathy. Empathy means you are attempting to see what they're going through, rather than feeling sorry for them.