We present automatic systems that implement multimodal social dialogues involving humour with the humanoid robot Nao for the 16th Interspeech conference. Humorous capabilities of the systems are based on three main techniques: riddles, challenging the human participant, and punctual interventions. The presented prototypes will automatically record and analyse audio and video streams to provide a real-time feedback. Using these systems, we expect to observe rich and varied reactions from international English-speaking volunteers to humorous stimuli triggered by Nao.