Take a camera. You won't be sitting with the press, that area is press only. You will be lined up against the walls if it's indoors. At the end of his speech he always shakes hands with folks. You can try to get to him then. You will be sitting around for a couple more hours after the president leaves and the press files their reports.
Big word of warning.... when you are waiting around for the press pool buses to leave.. DO NOT EAT THE PRESS FOOD. They always have food catered in their filing rooms. Nothing they hate more than the volunteers eating their food. It's not for you, it's for them.
The press will also be tired and not talk to you. They are not a chummy bunch. Don't be offended if they completely ignore you.
I advise you pack a camera and black magic marker in your purse. The Advance Office always forgets to bring their markers and pens to make the signs for the buses. Trust me, bring a black marker and you will be a hero.
Have a great day, wear comfortable shoes because you will be standing for hours, and please report back tomorrow night. We would love to hear about your adventure.