There are many ways to implement "safe environments". I'm a person who easily speaks up and is pretty assertive but back when I worked in Scrum I really liked t

There are many ways to implement "safe environments". I'm a person who easily speaks up and is pretty assertive but back when I worked in Scrum I really liked the retrospectives where people first silently wrote down their thoughts on post its, then each and everyone went and put them up; explaining what it meant. During this you were not allowed to disagree with but you could ask for clarification. Then you would vote on what seemed most important and go into deeper discussions. I always felt that those sessions were more productive than just going around the table or people just speaking up.