It's my psychology homework. We have a list of concepts to operationally define. The definition must be specified in great enough detail so that another researcher could literally replicate or clone the operation or procedure. The concepts: friendliness, aggression, attention, gracefulness, intelligence, fatigue, and memory.
My answer for friendliness:
I define friendliness as the length of a participant's smile when engaged in conversation, the number of times the participant smiles when engaged in conversation, and the number of details the participant remembers from said conversation. To measure friendliness, I would have participants engage each other conversation. I would record the lengths of each participant's smiles, the number of times each participant smiles, and then quiz each participant about particulars from the conversation.
I'm just asking for a little help here, not a write up for my homework.