In psychology, a first impression is the event when one person first encounters another person and forms a mental image of that person. The first impressions individuals give to others could greatly influence how they are treated and viewed in many contexts of everyday life.

What does D impression mean?

1 : the effect produced by impressing: such as. a : an especially marked and often favorable influence or effect on feeling, sense, or mind. b : a stamp, form, or figure resulting from physical contact.