What's the best way to bring water/water bottle to convocation?

Would it be a problem to just lug around a small water bottle the whole time? I drink a lot of water and it'd suck not to be able to drink a bit during the two to three ish hours I'll be there waiting for convocation to start and the whole shabang.

One small detail that would be helpful to know from past graduates is whether you go back to the same seat after you're called up to the front for the main event. Went to a sibling's graduation that was like that so it'd probably be fine to bring a water bottle with me, leave it at my seat when I go to the front, and then go back to my seat to wait out the rest of the event.