Tell the others 3 facts about yourself whereas one is a lie. Let the others guess what was the lie.
Prepare 5 True/False questions on big sheats of paper. Expose one question at a time standing behind the "newbie" and let them guess what the question is. e.g.: I am developper. I like beer. I do a lot of sports. I am working here for more than 5 years, ...
Prepare a number of tasks for everyone participating in the meeting. Shuffle them and let everyone pick one of the tasks. While introducing themselfs they have to fulfill the task. You get a point for
- either introducing yourself without having the others figure your task
- figuring someones task Tasks can be something like: stand on one leg, don't use the letter o, say at least 3 ancient words, ...