We've placed a large full-length mirror near the entranceway to our Baltimore facility that team members and visitors pass. Across the top of the mirror, we post banner messages such as "Smile! You're entering a world-class organization and we're glad you're here!" We change the messages every few weeks and send an e-mail announcing that the first 10 team members who come to the human resources office to state the new message receive a small prize. Change is the key to making this work. Change the messages, change the prizes. ... The element of surprise keeps it interesting and fun.