They will be looking for evidence that you want to contribute to the school as a whole rather than being a teacher who leaves each day as soon as school finishes. A simple "Yes" answer won't do here.

Talk about areas in which you could get involved. These could include musical events, drama, sports teams, computer systems, fund raising, crafts, trips abroad and many others. Great skill would not be needed, just enthusiasm, but if you can give evidence of involvement in any of these areas it may go in your favor.

Clubs and societies at university could be mentioned, especially if you have taken on an organizational or management role. Also, if you have a particular ability, such as you are a good swimmer, tuba player, tap dancer etc, then you should declare it. It could be the means by which you add that little bit extra to a school and are able to get the attention and interest of the pupils.