Consider qualities that are relevant to this position. Talking about your love for people. You're the one who everyone calls for advice. You're the one who always plans trips and events. Think about the qualities that correspond. The kudos you have received from your teammates and the handwritten thank you notes you have received following baby showers for co-workers all give you hints about how to answer this question. Think about all of the positive things your co-workers have mentioned to you along the way. Pick 2-3 encouraging things these people have said about you that show off some of the strengths that are important to have as a hygienist. Maybe that baby shower thank you note mentions your caring attitude. Perhaps your teammate thanked you recently for always working so hard to achieve goals you are working on. Don't be afraid to brag a little, but keep it relevant.