1. Smile at strangers. It’s the quickest energy booster between two people. Long-lasting, genuine and unlike Starbucks, absolutely free.
2. Drink plenty of water, no matter how far the bathroom is.
3. Buy a small glass bottle, fill it with water and carry it everywhere with you.
4. Don’t forget to drink it, of course.
5. Forget about the existence of lift. Imagine it is a large moving box that eats people. Don’t go in!