1. Be patient, maintain eye contact, and let the person naturally finish what they want to say. This shows your communicative partner you are interested in what they have to say. Some people look away because they feel uneasy which is actually a nonverbal way of ending a conversation and shows non-interest.
2. Do not finish their sentence or fill in words for them.
3. Never tell the person who stutters to: ‘Slow down,’ ‘Take a breath,’ or ‘Relax.’ as this advice is often taken as being demeaning instead of being helpful.
4. Slow down your speech, but not so much that it is noticeable.
5. Allow for extra time in stressful situations such as talking on the phone or giving a presentation.
6. These helpful hints will show the person who stutters that you care about what they have to say, not how they say it. :)