This Liste may contain spoilers!
1. Relate everything they say to the Harry Potter Bücher and/or movies.
2. Say they look like a Harry Potter character of the opposite gender.
3. Quote Dobby.
4. Hog the computer 24/7 while logged onto MuggleNet.
5. Read out loud to them whenever they can't get away from Du (Example: When in a car oder an elevator). If Du don't have a book with you, recite from memory.
6. Give them Harry Potter merchandise for their birthday and Weihnachten and demand that they keep it and treasure it forever.
7. Rewrite their Favorit song with Harry Potter lyrics and sing it constantly....
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