I was going to do a level 1 is like sex joke, but I knew you all had my back.
One of the reason I really like MF is that you almost always can get level 2 first while getting poke in. You can Q off of the caster minions to lay damage down on the other ADC if they position poorly (haha, they all do in silver) and you pretty much always hit level 2 first. From there her Q and W make you win every trade, so you can go in and usually push them out of lane or make them flash if not outright kill them.
It's amazing how that 2-3 second window before they hit level 2 can decide so much for the lane.