You have two options to choose from, and they are both scientific experiments:
Option #1 – Go on a walk!
Walk through an area where there are plenty of other people around. You can even simply walk through a grocery store while casually tossing items into your cart. During the entire walk, wear your unique power smile. Notice and record your results in the comments section below. Did you notice people looking at you more? Did anyone smile back or say something to you? Did you notice a difference in your mood? How would power smiling in public make a difference in your life?
Option #2 – Bring your smile to work!
Whatever your occupation (or even if your work is in the home), power smile while you work. Notice and record your results in the comments section below. Did your work seem to get easier and more pleasurable? Did your coworkers notice a difference in your attitude or performance? Was your power smile attitude contagious?