Although I have participated in the open campus, I am only going to school if I am participating in vagueness, and I will come back without getting the information I really want. To compare different schools, prepare some criteria for comparison and then join. Here is a summary of the points you want to check if you go to the open campus, so please refer to it. If you can shoot, it is better to shoot with your smartphone or camera.
When you get home, let's put together the information of the day while the memory is clear. At a later date, it is useful to make notes for participating in the open campuses of other schools for comparison.