Daniel Ward’s 30-page “Arpeggio Meditations for Ukulele” for ukulele players reminds me of the Hanon exercises I played every day as a budding piano player. That’s how I built my technique, after playing the scales and arpeggios in the key I was assigned, I’d play one piece from Hanon for the entire week. This sort of repetitive finger exercise gets you into a trance. However, I daresay, Ward’s music is a lot more interesting and pleasing to the ear than Hanon’s.
After you get your first ukulele (whether you borrowed, rented, or bought), the next thing you need to do is to learn how to strum. This is the rhythm section.
However, it’s nearly impossible to write about strumming without showing it, so you’ll have to come to one of my ukulele workshops, especially the one called “Different Strokes for Different Folks.” For now, I am going to answer your question about what to do with the other hand: which chords should you learn first.