Most of what we do in Praise and Worship really just praise. Everyone can participate that has breath can praise Him. Worship at it's core, I believe, is our reaction in faith to His worth. David's reaction in purchasing property for worship (threshing floor at Aranauh) that would have been given, being an example. It costs something to truly worship. Anyone can pay lip service to God. We are to present our bodies a living sacrifice that is the logical worship of Him who died for us.The closest we all get to worship many times is what we call the offertory. Even here though men and women generally try to get by with as little as possible. Or attempt to justify or rationalize their giving.