This activity is great for the start of the school year, for new or substitute teachers or just as a fun activity with your class.
Each student is given a sheet and they have to find someone who... for example is born in the same month as them. This gets students up and talking to each other and getting to know the other people in their class.
I have made this one so it can be relevant for all ages and students from all backgrounds. The resource is in a word document and editable so you can customise it for your class.