(transitive) to keep to oneself, to keep under one's hat

sure of oneself, self-assured, self-confident, confident

neat and tidy, trim, clean-looking, fit to be seen

privately, to oneself

end in itself (something that is desired for its own sake, and not as a means of obtaining something else)

(intransitive, informal, simile, sometimes derogatory) to make oneself at home

to speak for oneself

(transitive) to leave to one's own devices

to set tongues wagging, to make waves, to hit the headlines, to get oneself talked about, to be the talk of the town

to have everything going for one, to have everything