Kellett reception year interview

Kellett conducted its interview for reception year small kids before Xmas. We didn't receive invitation so I considered it a dead end and almost forgot it. To my great surprise (with joy), we were informed yesterday that the school would like to interview my kid in a few days. Kellett said that due to covid-19, it had to make some change to the format, ie, now the school adopted 1:1 'stay-and-play'. One teacher will speak to and play with one child for 15 minutes.
I'm wondering if anyone interviewed by Kellett could kindly share his/her experience Many thanks. We will go to Kowloon Bay campus yet I guess the interview format would be same as the HK island campus.