Difference Between W and V Sound

Norman said I am not well with W sound. So let's try to fix it...

When you say the sound of “v”, you bite your lower lip. In the case of “w”, there is no biting of lip. There is only your mouth which forms a slight O while saying it. ... Uttering 'w' requires you to pout your lips whereas pronouncing 'v' involves begininng from a position where your teeth touches your lower lip.

1. Willie's wit was wonderful.
2. Why worry while we wait?
3. Winifred was wanting what Walter wasn't.

Thanks Norman for his help!