HOW TO PLAY TAMBOURINE
You don't have to be a professional musician to participate in Praise & Worship.  In fact, you don't have to play an instrument at all.  But, don't be afraid to try if you want to.  If you don't play an instrument already, a tambourine is a good place to start.  Below are portions of tambourine instructions that can be very helpful.  These videos can give you a feel for how to handle a tambourine and some of what is possible.  Don't think you have to do it all at once, just help keep a beat if that is what you are comfortable with.  Practice with music at home using a toy tambourine, an embroydery hoop, or even your hand.  No matter what you do, be sure to have fun enjoying praising the Lord with your expressions of worship. 
Introduction
Playing Straight Time
How To Play Accents
How To Play Back Accents
How To Roll