Manstead and Fischer, 2001
The appraisal of behaviors, thoughts, or feelings of one or more other persons in the emotional situation, in addition to the emotional event per se.
Manstead, A. S. R., & Fischer, A. H., "Social appraisal: The social world as object of and influence on appraisal processes". In K. R. Scherer, A. Schorr, & T. Johnstone (Eds.), Appraisal processes in emotion: Theory, methods, research (pp. 221 – 232). New York: Oxford University Press. 2001:222