Is there an expression in German that means "keep your head down", in the sense of "keeping quiet"? I don't mean keeping quiet about anything specific - just going about one's own business without making a fuss.
For example I guess that the English idiom - "keep your head down" - also could mean, in a criminal context, to keep a low profile so as to not attract attention of the police. You could use here "untertauchen" but this would only fit this context and wouldn't be good for other meanings the English idiom could have.
This just to illustrate that we need just a tiny little bit more - context!