I use a pick to play, but recently i started playing with my fingers. I can find articles about fingerpickings and what not, but i can't find anything on how to strum chords without a pick, are you susposed to use your thumb, maybe a couple fingers together, etc...
Use whatever works for you. I tend to use my index finger's nail for downstrokes and my thumb nail for upstrokes.
it depends on the chord. you usually pluck the root note with your thumb and then the bottom 3 strings with your index, middle, and ring fingers
i'm not talking about playing notes indiviudally, im talking about playing the whole chord at once