So I have to make do with what I have. One of my favourite icebreakers that works well with large classes and students who have just met for the first time, is in fact similar to Seth's writing facts on the white board, except that I don't do facts, but photos, and to a certain extent to Karenne's Power Point presentation, except that I don't create a presentation but a poster.
For my Who am I? activity, I created a poster divided into four parts, each depicting a different topic:
Each of the parts contains photos only, so that students have to ask questions if they want to know more about me.
After they've found out "everything" about me, I ask my students to take a piece of paper, divide it into four parts and draw pictures that describe their family, their wishes, their hobbies and what they do. They are not allowed to use words, letters or numbers.
After that, they do a pair-share activity, in which they try to find out more about their partner, based on their drawings. Finally, instead of introducing themselves to the whole class, they introduce their partners.
I've noticed that students talk about their partners in front of the whole class more willingly than they would about themselves. They feel less shy and more confident, as they are not supposed to know everything about the person they've just met.