A Simple Question About Zamzam Water

Salam everyone-sorry if this sounds a bit silly, but I've got a quick question about Zamzam water. A coworker gifted me some because she knows I try to fast during Ramadan and pray and everything, but to be honest I'm not the most religious person, so now I'm kind of stuck thinking, 'What do I actually do with this?'. Am I supposed to make a specific dua before drinking it, maybe state an intention, or is it enough to just say Bismillah and drink it?