Check out the video lists for ‘The Ukulele Teacher‘ and I’m sure you’ll find a video or two (maybe many more!) that you find helpful. Here is an example of his video on ‘Chucking’.
How to Chuck a Ukulele – chucking/chunking/palm-muting
His videos are easy to follow, witty and fun. He also organizes the order of the videos very effectively.
The Ukulele Teacher’s YouTube HOME page view.