to show, to have somebody see / to display, to show, to demonstrate / to indicate, point out, to denote / to indicate (for a measuring device such as a clock to show a value)

white flag; truce flag; surrender flag

surrender, capitulation / (materials science) yielding

to surrender, to capitulate / (materials science) to yield

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

to shake; (of a hand or flag) to wave; (of a tail) to wag; (of a baseball bat) to swing; to move something back and forth in a circular motion

swing, wield, flourish, wave, shake

assuming the air of, acting like it (when one is not)