For as in one body we have many members, and the members do not all have the same function, so we, though many, are one body in Christ, and individually members one of another.
Romans 12:4-5
 
The Holy Spirit has gifted each one of us for works of service so that the body of Christ may be built up  (Ephesians 4:12). Below is just one tool to help you discern how you have been gifted by God to serve.