Charing Cross Road, Saturday afternoon - a crowd outside Central St Martin's School of Art display windows. Why are they all staring at a steamed-up window? Well, it is near Soho - and it was an advertisement for an exhibition at the Barbican: Seduced: Art and Sex from Antiquity to Now. But this wasn't quite as exciting as all that - it was a young woman licking chocolate off the glass.
Lèche-vitrine, if you didn't know, is the French for window-shopping - but I don't think they imagine it happening from the other side.