Unfortunately it's a mimed performance...but you can't have everything!
I think this is from either "Shivaree" or "Shindig!" music programmes from the 60's, and unlike the the performance Dusty gave of the song on "Hulabaloo" (a clip of which is included on the "Full Circle" dvd) -here Dusty uses the version of the song as originally released in the U.K. as opposed to the shortened version released by Philips is the U.S. (where they cut out the instrumental break in the middle of the song).