When preparing to marshall an A320 one summer's day,one of my Ramp colleagues,newly trained,begged me to let him marshall the fast approaching a/c as it entered the Apron.Apparently the bulk of****'s family had gathered on the Viewing Gallery(Landside and behind us) The A320-new to the apron slowed and at that moment**** urged on by his family with shouts of "Go on my son" "Give it some" etc.etc. , turned round to his audience and gave them a cheery bat-wave. At this the A/c feeling somewhat neglected,resumed its course and trundled off, past the Tower. Haunted by the thought of a P45 I grabbed the bats and raced across a patch of grass. My legs then became entangled by a massive cable-tie,left by the night Mail loaders. Down I went to laughter and rude comments from the Viewing area....... ATC stopped the a/c ,a push-back tug was called for and I beckoned **** over for tea and a chat.