I think it all depends on your personal preference, because what auxiliary line you make depends on your experience, thinking and your reaction. Sometimes you know how to make auxiliary lines at first sight, and sometimes you don't know how to do them for a long time, depending on your habits. If you think of homework help at first sight, press homework help. If you think of Wan Wei, Daan and Wan Wei, and it turns out that you didn't think of anything, then you can tell which one it is.