Idiom of the Day
cue (someone) in or cue in (someone)
to tell someone what is going on
I did not know what was happening until somebody cued me in.
Very similar to the 'head held high' signal. Holding the chin up naturally alters the angle of the head backwards, exposing the neck, which is a signal of strength, resilience and pride. A pronounced raised chin does other interesting things to the body too - it tends to lift the sternum , which draws in air, puffing out the chest, and it widens the shoulders. These combined effects make the person stand bigger. An exposed neck is also a sign of confidence. 'Chin up' is for these reasons a long-standing expression used to encourage someone to be brave.