It looks like he is in an alternate tuning, tuned to a chord. You need to learn how to use your ear to figure out the key and chords. Also you need to know how to fingerpick with your right hand.
Thnx to all but i was talking about
Right hand kinda strumming and fingerpicking togethr
Oh, that's a more advanced technique. It takes quite a bit of practice if one isn't already used to it or taught it. Basically one finger and the thumb pluck and the rest strum the rest of the strings, to the best of my knowledge. I may or may not be wrong on that.
I haven't truly fingerplucked in many a year (comparatively), so I pretty much lost all my former knowledge on it I just know how to do it, is all. Can't explain anything