Quote from : Harry Potter and the Half-Blood Prince Movie

[Harry gulps down the Felix Felicis]
Hermione Granger: How do you feel?
Harry Potter: Excellent... really excellent!
Hermione Granger: Remember, Slughorn usually eats early, takes a walk, and then returns to his office.
Harry Potter: Right. I'm going down to Hagrid's.
Hermione Granger: What? No! Harry, you've got to go speak to Slughorn! We have a plan.
Harry Potter: I know, but I've got a really good feeling about Hagrid's. I feel like it's the place to be tonight. Do you know what I mean?
Hermione Granger, Ron Weasley: No.
Harry Potter: Trust me! I know what I'm doing, or Felix does.
[walks past two people]
Harry Potter: Hi!