Thats the magic formula.
Since you dont use the pinky for much, except when you impersonate
Dr Evil, the muscles in that finger are weak, much like the ears muscles
(yes, you do have muscles there, enough to wave if you train long enough).
Luckily, it's much easier to train the pinky than the ear.
Bend alot.
Stretch alot. Thats it.
There is a good stretch exercise called "The spider", which I will
post in my tricks section soon, check it out.
And dont forget that it will take time. Lots of it.