Look for them rather than watching the dancers - there is some pure joy, people caught up in the experience. Some even dancing on their own.
There are also a few others that just walk on by with little to no acknowledgement of what is happening. Maybe even annoyance.
If we don't take the time to grab little moments of joy, random moments bought to you by someone else - think of what you may be missing. Look around you every day and always try and find the joy.