Opening bookshelves:

At Hogwarts there are bookshelves you can open 
and get prizes. 

There are 2 in the Great Foyer. 

There is also 1 outside the Gryffindor Common Room.

The nearest bookshelve to the portrait of the Fat 
Lady can open up. 

Submitted by Theo 


Malfoy:

When you are fighting Malfoy (in the entrance hall)
stand far away and let him throw the crackers at you.
Dodge them so that they fall on the ground. Pick 
them up and throw them at Malfoy quickly.

by unknown