theres alot u can do but it takes a long time too perfect it there the step back, pull up, spin move, crossover, behind the back, pump fake, up and under, etc.

and with the crossover just practice more

That response was not specific enough for my taste.

Stand in place and bend at the waist , dribble the ball from hand to hand in a sweeping motion, start slow and gradually speed up with practice. then as you get better and faster and do it with your EYES CLOSED you can stand up str8 and add more rocking motion into it .

Then set up cones close together and practice as if they were defenders....

always be dribbling,