Text someone, "Do you see me outside?" When they say no, say, "Yes! My invisibility cloak works!".
In class, turn your text book upside down while reading. How long till teacher notices??
Change your name in your friend's phone to Darth Vader after deleting previous messages then text them from your phone "Luke I am your father".
When someone is texting you text them and tell them that you can't find your phone.
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