“…In several studies, nonautistic people misperceived the social signals of autistic people (for a review, see Milton, Heasman, & Sheppard, 2018). Thus, researchers need to not only look beyond typical indicators of sociality, but also recognize that their appraisals of others' sociality (including prejudices and inaccurate assumptions; Li & Koenig, 2019) can have cascading negative effects (Akhtar, Jaswal, Dinishak, & Stephan, 2016) and even become self-fulfilling prophecies (Jaswal & Akhtar, 2019a). If developmentalists are truly interested in all of human development, it is imperative that we broaden what counts as social behavior.…”