I.about [美 əˈbaʊt, 英 əˈbaʊt]副about often appears as the second element of certain verb structures in English (fool about, knock about, move about, etc). For translations, see the relevant verb entry (fool, knock, move, etc)
He will fiddle about, in a very minor way, with super and a pretend bond "investment" (where the government offers to look after your money) but otherwise it's basically zip.
Whether people would take the time to fiddle about for 20 pence or ask a passer-by for change, rather than water the nearby railings, we're not so sure.