A lot of people drink just water but I like to mix 1 part of OJ to 2 parts of water. I prefer the taste and it does contain a few calories which will help slightly in keeping the old energy stores topped up. On rides over about 40 miles I add 2 scoops of maltodextrin (carbo) powder per 500 mL of drink. Why not experiment with different drinks and eating on rides and see what suits you best?
One thing is for sure - not eating or drinking enough will eventually lead to the dreaded 'bonk' and you won't want to suffer that more than once! (Before you ask what 'bonking' is - if you don't feel so great on a ride but have to ask if you've bonked, you haven't! When you can't stand up, or remember your own name or where you live - you probably did!
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