There is nothing, in particular, you need to take, bother than some questions you may have for the university staff/students. Be sure to view all areas of the university and the local area. Make sure you plan how you’re going to get there too and if there is parking etc.
To view the University Open Day calendar, use the link below:
University Open Day advice, can be found here:
The comparison tool makes it easy to compare UK universities and courses, click here: