1) Relate everything they say to the Harry Potter movies and books.
2) Crowd their inbox with Harry Potter related e-mail and make sure the subjects are misleading .
3)Give them Harry Potter merchandise for their birthday and demand that they should treasure it forever .
4) Pretend you can do magic .
5) Yell " Crucio " whenever they insult Harry Potter .
6) If you are late for something blame it on your broken time turner .
7) Sort every person you meet into one of the four houses .
8) Say "Lumos" every time you turn a light on .
9) If you are to retrieve something , shout "Accio" loudly .
10) Refuse to wash your hair and explain that you are going for the Snape look .
11) Spend hours at a time trying to get your broom to fly.
12) Tap all the brick walls you encounter with an umbrella .
13) Demand to know what exactly the function of a rubber duck is .
14) Carry around a hip flask and refuse to drink anything anyone offers you.
15) Hum the Harry Potter theme song all day long .
16) Talk to animals and insist that they are an animagi .
17) Walk up to random people and ask them if their initials are R.A.B .
18) Tell them that they are almost as smart as Grawp .
19) Refuse to tell them who Grawp is .
20) Whenever it's foggy outside scream " The Dementors are coming " and hide for days at a time.
21) Point at modern electronic devices and say loudly " Look at these ! The things these muggles come up with ....." .
22) Point and grunt and insist that you are a speaking troll .
23) Take them to a CD store and make them help you look for the newest Weird Sisters album.
24) Always speak with a British accent ,especially if you are not from UK .
25) Draw round glasses and lightning bolt scars on every posters or pictures you come across ....... in a permanent marker .
26) Constantly compare them to Mrs Figg .
27) Laugh evilly if they ask who Mrs Figg is .
28) Complain loudly about how your pictures don't move .
29) Break any awkward silences by saying ,"How about them ,Chudley Cannons ."
30) Say " Alohamora " every time you open a door .
31) Every time you see them demand an explanation of exactly why they don't like Harry Potter .
32) Say everything in a sing - song voice like Luna Lovegood .
33) Shriek loudly and say that you are speaking Mermish .
34) If they ask you about the weather ,solemnly say ," Mars is bright tonight .
35) Pretend you are under an invisibility cloak and shout " You can't see me"!
36) Knit them a maroon jumper every years .......especially if maroon isn't their colour .
37) Draw the deathly hallows symbol on every surface in the house .
38) While playing chess with them , stare at your pieces and give them verbal commands .
39)Throw the chessboard across the room when the pieces don't move.
40) When one of the movies are on television remind them ......every five minutes .
41) Refer to random people as ' You Know Who ' .
42) Start swatting at the air and explain there's a whack spurt floating around
43) If they ask for phone number ,tell them it's 62442 .
44) Ask them help you study for your O.W.L 's .
45) Walk around bumping into walls and explain that you are looking for the Room of Requirement .
46) Run up to random men with long dark hair and scream ," SIRIUS ! I always knew you were alive " .
47) Hog the computer when making Harry Potter videos on YouTube