On the first day I like to do a bunch of organizational things but I also like to play some icebreakers. I play these with my grade 7 class but you could adapt them up or down, I played most of them with my grade one class as well.
I start with Who am I? Follow it with Where the Wind Blows, and Guess Who? Then I like to finish with Two Truths and a Lie.
There are also a list of questions which I use as a fishbowl discussion. There is also people bingo if you have the time.
For each game you get instructions as well as suggestions for alternate play if applicable. You also get game play cards, lists of questions, or leading topics.