a sign

(idiomatic) to care about something, to pay undue attention to something, to mind something which is a negative nuance, to worry about something

plain negative imperative form of 気にする: never mind!; don't worry about it.

to have an interest in something or somebody, to be inclined towards doing something

(idiomatic) to cause concern, to be worrisome, to be on one's mind / to be interested, to be curious

to give off the sense that ~ / to feel that ~; to think that ~ / to be in the mood to ~

each person

myself, oneself

a photograph of oneself, a photographic self-portrait / (especially) a selfie

to take a photograph of oneself, to take a selfie