In the business world, nepotism is the practice of showing favoritism toward one's family members or friends in economic or employment terms. For example, granting favors or jobs to USLegal Home
Social cue. A social cue can either be a verbal or non-verbal hint, which can be positive or negative. These cues guide conversation and other social interactions. A few examples of social cues include: facial expression.
A design craft that deals with interaction, which isn't a term specific to computers. This could be the interaction between a customer and a checkout line, between a caller and a customer service agent, or a barista and his coffee maker. Human-Computer Interaction is an area of study as opposed to a design craft.