Emotions 7 Social aspects 3 Expression 2 Nonverbal communication (Psychology) 2 Sex differences 2 Autism in children 1 Body language 1 Childhood friendship 1 Communication and culture 1 Emotional contagion 1 Emotions and cognition 1 Emotions in children 1 Emotions in infants 1 Expectation (Psychology) 1 Facial expression 1 Interpersonal communication 1 Interpersonal communication in children 1 Interpersonal communication in infants 1 Interpersonal relations 1 Language and emotions 1 Methodology 1 Physician and patient 1 Psychological research 1 Psychology, Comparative 1 Research 1 Self 1 Self (Philosophy) 1 Self psychology 1 Sociological aspects 1