It's a part of jazz singing it's improvised wordless usually to sound like an instrument
        
             
        
        
        
The answer you're looking for is motion.
        
                    
             
        
        
        
School  to  work  program  is  an  education ,  an   career  focused  opportunity    that   introduces   student  to    the link  between  classes  and  careers. 
       The   school  to    work  program  is   a  current  careers  advice  which  support   student  to  make  a  successful  transition  to  a  range  of   post  education,training  and  employment option.  It  encourage  schools to  be  flexible,  future  focused   and  innovative  in   engaging  with  wider  community  to  support  the  career  and  transition  needs  to  all   students