Activists at the UKIP spring conference have just been asked how much they want Britain to leave the EU, on a scale of 1 to 10. “Six? Seven? Eight? Nine?” Richard Murphy, head of field campaigning at Grassroots Out (GO), asks the half-filled hall in Llandudno, north Wales. Hands stay resolutely down. “Ten?” There are loud cheers and a sea of hands reach into the air. “Eleven!” shouts one excited delegate, getting to his feet.

"I just want you to bear that in mind,” Murphy says. "Because do you seriously believe that the BSE [Britain Stronger in Europe] campaign will have anybody that would stick their hand up at ten, nine, eight, seven? We have the passion and belief on our side and they don’t.” This is the final session of the day-long conference, when the "Kippers" get down to the nitty gritty of just how exactly they’re going to convince Britons to vote Leave in the 23 June referendum.

UKIP leader Nigel Farage has thrown his weight behind GO – which styles itself as an anti-elitist group reaching out to ordinary voters – but has insisted that it’s a cross-party movement with plenty of Tory and Labour support. UKIP know they need the support of other parties to secure a Leave vote in the referendum. Awkwardly, UKIP’s only MP, Douglas Carswell, backs rival campaign group Vote Leave, along with the five Tory cabinet ministers fighting for Out.