Question

what can influence your memory of an event
a dream you had
hearing what other people are saying
rewatch

Explanation:

Memory of events can be altered or influenced by external information and re-exposure. Hearing others' accounts introduces new details that can integrate with original memories. Re-watching footage of the event reinforces or modifies recall by providing a visual recontextualization. Dreams are unrelated to the actual event and do not influence factual memory of it.

Answer:

• Hearing what other people are saying
• Rewatch