Hi Bluebird,
The beautiful part of your qigong exercise, is that it takes care of itself. It is when we get caught up in mind stuff, that we tend to over complicate things, trying to analyze, and take our own particular experience and figure there is something more we are supposed to do. All you have to do, is focus on the exercise. Aside from qi moving to the hands, as you express them open, your mind, also amplifies this. It moves there on its own, and if you shift your focus there, it amplifies it. If you are thinking about your finger tips, the energy will amplify there. Nothing wrong with that, or there isn't something extra you have to figure out at that point, just get your focus back to the exercise, and whatever elements you should be focused on, and let everything take care of itself. You won't be off track or doing the wrong thing in any way. Just do the exercise. This is about self healing, regeneration to youthfulness, and raising one's state of being, or consciousness. Just do it, and don't think about what you experience as something that needs fixing or additional direction. It takes care of you. Give yourself to the process. It is all there. Keep your focus within the realm of what you are doing in the exercise, and what visualizations and suggestions are given. What you feel is what you feel. You, the universe and your master's energy, are all working together as one, to elevate all aspects of your being. You are in a great place doing good things for yourself. All the information is there, just do it, enjoy it , and trust it. You may have all sorts of strong sensations or feelings...
love,
gallen