1 Warm your voice up on the way in; your croaks might amuse immediate workmates, but your boss is less likely to appreciate it.
2 Fruit and healthy snacks will keep your energy up through the day.
3 Drugs might seem like a quick solution, but will only make the matter worse. Also, be careful not to overdose on caffeine.
4 If you feel unable to perform all your duties properly, call in favours from your workmates. But only ones you trust.
5 If you can, hide behind your computer screen. You might spend your working life striving to be noticed, but today anonymity is your friend.