Articulation: Saying your speech sounds
R sound https://www.youtube.com/watch?v=5F-qKn_x59I (bunched)
https://www.youtube.com/watch?v=PDKWscOgl7U&list=PLn4lnoyx0v3Jg3cHfyPPTgPl08kyYmHA3&index=2 (retroflexed)