My go to pick up line is, “is your father a terrorist? Because you seem to be a bomb!” While this pick up line is too overused, it still sounds funny and hence many women take me as a funny guy. Said he right way, the girl would definitely laugh and this would help you in building your impression as a funny guy.
Most women do love funny guys so that is definitely a plus point. However, try not to make your pick up line way too cheesy. Give it a tinge of humor and use it as a joke, because gone are the days when pick-up lines were used for romantic purposes.