Is Klaus sulking or scheming?

Glossary of difficult words

to sulk - to be in a bad mood, to be grumpy;

to scheme - to make plans, esp. in a devious way;

to shunt - to push or shove;

to put a brave face on something - to act as if something unpleasant or upsetting is not as bad as it really is;

shakeup - a radical reorganization;

protracted - lasting for a long time;

meticulous - very careful and precise.