In American English pronunciation, V is a vibrating sound. Make an F sound, but hold the teeth by the lower lip and let it vibrate. You should feel slight heat on your lip as you practice holding out the sound. Keep your mouth/jaw relaxed. Make sure to pronounce V in the middle or at the end of words.
Use the video to listen and repeat common words.
above, cover, develop, drive, even, ever, gave, give, govern, have, ivy, leave, live, love, move, never, river, serve, several, travel, van, very, vest, vine, voice, vote, vowel.