Alter Memory allow me to see Their memories?

While this charm lasts, you can affect the target’s memory of an event that it experienced within the last 24 hours and that lasted no more than 10 minutes. You can permanently eliminate all memory of the event, allow the target to recall the event with perfect clarity and exacting detail, change its memory of the details of the event, or create a memory of some other event.

I have an issue with the wording it implies that I have to know what the event was to alter it. What I am asking is can you use Alter Memory to basically see the event for yourself?