(informal) to wreak havoc, to create mayhem, to cause chaos / (informal) to stir the pot, to sow discord

with one's head held high (proudly, with pride)

(informal) to shift into second gear / (informal, figuratively) to get a move on, to move up a gear, to speed things up

A commune of the Hérault department, France.

One must make the best of one's situation, or make do with what one has; roughly keep a stiff upper lip, or when life gives you lemons, make lemonade

necessity is the mother of invention

joyfully, cheerfully, merrily

out of the mouths of babes comes truth

(informal) to eat very well; to fill one's face

to be locked out (of a building)