Research suggests that if you're in a good mood you're more open to new ideas. That means if you want to stimulate creative thinking, being happy helps.
A good way to achieve this is by helping others. Let's help others and be creative in the process, a double whammy.
Grab some chalk and create a motivational message on the footpath (or sidewalk depending on where you're from). Think of what message would be motivating for passers by, and how you could craft it to attract the most attention.
You'll brighten the day of many passers by.
We'd also like to see your efforts. Why not take a picture of your work and post a comment linking to it. We'll also tweet the most ambitious effort.