Problem: In this situation, not remembering the girl can be explained through many concepts, one being an encoding failure. If you were not actively encoding the memory of her presence, then you may not have formed a strong memory trace. If you were not using your attention and focus, details about the girl may not have been stored effectively in your long-term memory. Another thing involving attention and focus is that divided attention can hinder your ability to encode and retrieve memories effectively. It can also depend on social recognition that relies on specific cues, such as facial expressions and body language. The lack of these cues at the party can contribute to your inability to recognize her. Need Assignment Help?