I need help with updating my Resume. How can these points be further elaborated to make it mire attractive to employers?

I need help with updating my Resume. How can these points be further elaborated to make it mire attractive to employers?

•      Customer Liaison between Company A and Clients.

•      Provide administrative Support to ensure efficient operation of office functions

•      Resolve administrative Problems.

•      Co-ordinate Office Procedures.

•      Handling and execution of Projects.

•      Computer data capturing.

•      Maintain contacts list and ensure clients data is kept confidential