Welcome to Cruise Mates
I see you've posted on the "Meet on Board" forum also so I think you'll find others you can "hook up with" over there.
You can bring all the wine, soda/pop (as we call it in Canada)
and water you want but not hard liquour or beer.
Check out the "Know Before you Go" section on HAL's website, for answers to dress code, etc. www.hollandamerica.com
HAPPY CRUISING. Once you've done one cruise, I am sure you will do more.
PS - you will love the Eurodam - our favourite ship now!