Used when referring to physical parts of things that face outward or can be seen.

Physical Surfaces

Emphasizes what is seen by others, possibly hiding what's inside or the reverse side.

Visibility Matters

Often used in a literal, physical sense, not discussing feelings or intangible qualities.

Describes misleading outward appearances, hinting there could be more beneath the surface.

Points out a contrast between a calm or pleasant outer demeanor and inner turmoil or opposite emotions.

Suggests that first impressions might not reflect the true nature or feelings of a person or situation.

Highlights an outsider's point of view, detached from the inner circle or core activities.

Implies being outside of a situation can sometimes give a clearer or unbiased perspective.