1) How did physically acting out help to explore ideas?

When you’re doing these things, you’ll start to understand your users and notice something that you think is unnatural. In other words, physical activity provides insight that cannot be achieved through magic. More importantly, it helps people express and share their ideas in a natural way.
2) Did you refine your ideas and solutions to the problem through bodystorming? In what way?

yes. Design is not only the work of thinking, but also the process of experience. Body storms give me another perspective to review my ideas and solutions so I can find some shortages.
3) What was difficult or challenging about bodystorming?

bodystorming are still not real. Maybe there are some factors that we can ignore in motion. As a result, precise details may be unhelpful. On the other hand, we don’t have any experience of actions or events, so we tend to continue with our impressions or stereotypes.
4) Does bodystorming lend itself to certain types of problems?

I think the bodystorming actually has an impact on some issues. Because most of us are not good at performing or familiar with the real scene of what we’re going to do, these barriers may hinder us from exploring problems and ideas. Still, the bodystorming is a useful technique for finding more relevant questions and ideas for users.