Really depends on what your goals are. People have different personalities while having the same passion, so you will see a plethora of variety in what board members do.
My advice it to find things that genuinely interest you, that you enjoy doing, and find what jobs correlate to them. Do NOT just chase a salary. Money is always nice, but doing a job you loathe for over 40 hours a week is a horrible way to live, and it will affect you far more than when you're on the clock, I promise you that.