Listen, I get it.

You're a musician or a singer. Playing music is fun.

Performing is just  playing music on stage, right? 

Here's the thing though...

Sometimes as musicians, we get so hyper-focused on our music. 
We tend to be really concerned with our ability to play a song, sing a high note, or wail on a guitar solo! 
So we practice scales, learn theory, and stretch our musical muscles to become great musicians.

But. the problem is that we completely forget about the audience of people listening AND watching.
They are probably enjoying our music, but we are only triggering one sense. Their ears .

What happens to their  other  senses?

If you only focus on their ears, your crowd can literally turn around and put their back to you. 
Your fans come to support you and they might deserve more than you are giving them.

Fans hear your music, but they want an experience.

A long time ago, I learned that while I am decent musician, my biggest strengths lie in the fact that by using my microphone to engage people , I can turn complete strangers into best friends by the end of an evening ...

... and many have stayed that way for years!

The effectiveness of your performances has very little to do with how well you play music. 

It has to do much more with how your crowd feels about you and your show.