Using Spells on Objects: Whenever you see an object start to light up cast spells on it until you use the correct one and then repeat the spell on the others. If you see a student light up cast a Dueling spell.
Luna's lost Belongings Side Quest: At the Entrance hall talk to Luna to recieve this side quest. Her lost items are at the following locations:
1) On the table in the Great Hall.
2) Use the broom to sweep the leaves on the right side of Entrance Courtyard.
3) In front of the fountain in the Clock Tower Courtyard.
4) On the table in the Library.
5) In front of the bookcase next to the stuttering portrait at the Viaduct Entrance.
Talking Gargoyles Side Quest: Look in the following areas to find the 5 Talking Gargoyles for Dean.
1) Where Dean is standing in the Transfiguration Courtyard.
2) When you walk up the spiral staircase to the 'Defenses Against the Dark Arts' classroom.
3) On the stone pathway leading to the the Viaduct.
4) Go up the stairs and go the left of the portrait on the 4th floor. Then go through the door on the left and run to the end of the balcony.
5) Up the Stairs in the Paved Courtyard.
Unlockable Trophies in the Room of Rewards When you have successfully completed the following tasks the corresponding trophies will become unlocked in the Room of Rewards
18 cups are unlockable, for each one there are specific task, just read on to find out what is required for each one.
Architecture Cup Get all 12 Hogwart's Emblems.
Characters Cup You need to talk to each of the 58 characters at Hogwart's.
Defense against the Dark Arts Cup Cast all defensive spells in 6 duels.
Exploding Snap Cup Beat both the Exploding Snap Champions.
Explorer Cup Explore all the different areas of Hogwart's.
Famous Wizards and Witches Cup Find all of the 15 Wizard Plaques.
Friends of the Year Cup COmplete the game while having found all of Luna's lost items.
Golden Gobstone Cup Deafeat all four of the Gobstone Champions.
Grandmasters Cup Defeat all three of the wizard chess Champions.
Homework Cup Complete all teachers' sub-quests.
House Ghost Cup Find all four ghosts.
Nature Trail Cup Find all of the animal footprints.
Ornithology Cup Find all five flying animals.
Portrait Password Cup Get all 12 portrait passwords.
School Pride Cup There are 55 chores to complete, for this cup you need to finsh them all.
Secret Statue Cup Discover all 12 wizard chess statues.
Smuggler's Cup Discover all 12 of Fred & George's secret packages.
Studious Success Cup Get top grade in all lessons.
Flying Creatures for Room of Rewards Collect the following flying creatures for the Room of Rewards.
Doves: Found at the bridge at the Viaduct.
Crows: Found at the Stone Circle.
Seagulls: Found at the boathouse.
Pixies: Found in a desk in the Defense Against the Dark Arts room. Bats: Found below the Stone Bridge (at the Stone Bridge light ALL the torches with Incendio and then climb down the pipe to the bottom to find them).