Prep for Anatomy Scan

Hi ladies! I go on Wednesday for my 20 week anatomy scan. At my last ultrasound, the tech told me certain instructions on how to prepare and I have forgotten them. I do remember that she told me to drink water up until the day of the ultrasound, but I can’t remember exactly how much! And then she told me to drink a coke or soft drink the morning of so that the baby is active! Has anybody else had specific instructions before they go to their scan? This is my second pregnancy and they never told me anything like this the first time around! Any info is appreciated!