For those who would like to dip their toe into the positive psychology world I've plucked a few of the recommendations from my book, Positive Psychology At Work, for you to have a look at. Hopefully they illustrate just how intuitive a lot of this is - which doesn't make it easy to do in a hierarchical, busy organisation of course!
Elicit Success Stories
Start meetings with a round of success stories. Before you get into the meat of the meeting, usually a litany of problems and challenges, start by giving people the opportunity to share the best of their week.