Confidence-boosting is a term used to describe activities or strategies that help to increase one's self-confidence. REASSURING is an adjective that describes the act of providing comfort and support to someone, which can be a key part of confidence-boosting. REASSURING can be done through words, actions, or even just being present for someone. It is a way to show someone that they are valued and appreciated, and can help to build their self-esteem.