I suggest you make a list of fun projects that happen to be educational (i.e. Building a robot(programming/mechanical engineering), making a movie(creative writing/graphic design), playing an instrument(extremely helpful with math/patterns)). Then let the kid pick one at a time, and work together(bonding time is always important, and the kid will more likely remember the activity as a positive experience) on it. Go through the list until the kid's eyes light up. That's their passion. The key is to make it interesting/fun for the kid so it hopefully sparks a passion to make them a life long learner.