[kiwiref]

You see, it's all about respect. You can get that respect by doing something that would impress the crowd. Showing them fingers, will get you there eventualy, but an even faster way would be to:
1) Stand up straight. Reach into your back pocket.
2) Produce a flask.
3) Take a decent gulp of that bourbon, followed by a massive burp, and a loud "That's some good old ****" comment.
4) Now turn around and offer the flask to the spectator closest to you. Observe the utter silence as you do that.
5) Shrug your shoulders as he/she refuses, pack in the flask, and run up the court, as the game has surely moved on.
6) Make sure you say "Enjoy the rest of the game" to the crowd before you start running.