Stalk a girl that you don’t know, but see around regularly, on facebook. Then walk up to her one day and act as if you know her really well. Be sure to say her name when you say hello.
A look of confusion will appear on her face as she struggles to recall you, as soon as it does, say “Oh, I’m sorry. We met at—” and then say an event that she attended according to facebook. Or if you know what major she is, you can say “Yeah we met once at a [INSERT MAJOR] thing.”
Then end the conversation and walk away.
