I've rolled a few times and each time while drinking a bit, i prefer to find a nicer drink e.g: A Desperado's bottle instead, ( I usually drink Pints of Beer ) and whack some crystals into it. taste nice and gets you on a good vibe, plus it looks good when your out. For E.g: When i've been on MD, people notice I haven't got a drink and offer me one but I say no because I would prefer to keep on a good level instead of them peer pressuring me to buy shots which could fk me over. I also be careful who I say i'm on MDMA to, as mentioned i've only done it a few times and been frowned upon by people i call friends. I guess they just don't understand.
I think as long as you have a drink every hour or so it should be fine, providing you're having a longg night.