Harry Potter slipped the invisibility cloak around him so that none could see him anymore.
Harry Potter turned the Resurrection Stone in his hand three times and then appeared his late parents, his godfather Sirius Black, and his friend/teacher Remus Lupin although they were not living nor completely ghost.
The Hallows are:
The Elder Wand: The most powerful wand in the world, nearly unbeatable. The Elder Wand will only be truly powerful if its current owner took it themselves, by force, from the previous owner. Contrary to popular belief, you do not have to kill the previous owner to win the wand's allegiance.
The Invisibility Cloak: This hallow has been duplicated and many cloaks now exist, but this one is special. It renders the wearer completely invisible. It is not hampered by spells and will never wear out over time. It also offers protection, which no other invisibility cloaks do.
The Resurrection Stone: A stone that will call the dead back into the world of the living. But they will not be truly like they were, they still belong to the world from which they came. Most who call them back are unsatisfied.
The symbol of the Deathly Hallows is a circle (symbolizing the stone), sliced down the middle with a line (symbolizing the wand), and surrounded by a triangle (symbolizing the cloak).
Harry Potter is the only one who is able to unite the hallows because he is the only one worthy. But he drops the stone, and puts away the wand, never to use them again.
"I think the most useful of the Deathly Hallows is the Elder Wand."
To read or otherwise intellectually devour something in a matter of hours, as opposed to the days or weeks that would normally be spent on such a task. The name comes from the rapid consumption of J.K. Rowling's eponymous 759-page book, after the reader has worked his way through the first 1,300 pages of the the Harry Potter series, and will now forsake all human needs and comforts to know if Snape will get his comeuppance.
Person 1: "Done! I just Deathly-Hallowed in eight hours!"
Person 2: "Seriously?! Wow, my sister and I both started at midnight —we even read aloud to each other while the other was in the shower— and still took 12 hours! I'm impressed!"
(Although it turned out the really really really inbred evil guy was a pathetic weak pansy with constant PMS.)