On 17 December 2016, the exposition “Wallu Doom” brought hundreds to Pikine city, to the east of Dakar city centre in Senegal, to get involved in activities about complementary feeding. The exposition was the final step to a behaviour change strategy put in place across the country. Parents of young children, women of reproductive age, breastfeeding mothers, grandparents, community leaders and media were key spectators at the event.