1. Social Cognition in Human-Robot Interaction (S4HRI), Istituto Italiano di Tecnologia, Via Enrico Melen 83, Genoa, Italy.
2. IMT School for Advanced Studies Lucca, Lucca, Italy.
3. Pattern Analysis and Computer Vision (PAVIS), Istituto Italiano di Tecnologia, Via Enrico Melen 83, Genoa, Italy.
4. Department of Computer Science, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy.
5. Huawei Technologies Ltd., Ireland Research Center, Georges Court, Townsend Street, Dublin 2, Ireland.
6. Luleå University of Technology, Luleå, Sweden.