Definitely no rolling... will completely set your cycle off track, and thats not even mentioning the few days after that you don't feel like doing anything (including killing yourself in the gym). Feel free to have sex though.
extremely moderate usage, perhaps... but I still get mad side effects (depression, aches), so I abstain during my cycle. And the amphetamine effect seriously decreases my appetite for a day or two afterwards and that would put a crimp in a bulking cycle. Just as long as you feel you can handle it though.
just remember your liver is in overload while on gear. if you must drink alcohol use moderation. no other hardcore drugs, like crack, xtc or crap like that. no fried foods. dont add to your food, like butter, salt and dressing.