1) Emma has been in the EF before. S2A. She learned about “what to do and what not to do” IE do not shoot a gun in the air and bring the ogres. This wasn’t a situation where she was overly required to know about the EF. Most of the time, she’s hiding in our bushes or trees trying not to be seen.
2) Hook spent most of his life outside of the EF. His knowledge of the EF isn’t any more steady then hers.
1) Last time Emma was in the EF, she wasn’t expected to dance at a ball. This time she was. Last time Emma was in the EF, she didn’t need to blend in. This time she did. Emma’s experience in the EF this time was a lot different to her experience in the EF last time.
2) Hook’s knowledge of the EF is more sturdy than Emma’s for the fact that he was born and raised in a society that didn’t look like it had changed much over 200 years. As a naval officer, Hook would’ve attended formal occasions. The ball was one such occasion.
All magic comes with a price!
Keeper of Felix