Steps:
1. Take out cards and do simple flourishes with them.
2. Wait for someone to say, "What the f*** are you doing?"
3. Say, "Hold out your hand." Perform a two-card monte with fast-talking patter and a commanding presence.
4. Put the cards away, and walk away (if possible)
They will tell their friends or ask you to do more at another time.
TIPS:
-Try not to use a lot of story patter, it bores teens.
-Perform only before school, after school, long passing, and at lunch.
-Don't limit yourself to just cards.
-Remember, you're not a trained monkey. Don't become known as "magic kid" become known as "David, who does magic plays guitar, and likes Nirvana" Or whatever it is that you like or whatever other activities you're into. When you're done performing for someone, ask them what music they're into, what classes they have and stuff like that. Don't just do magic