God, It's only day 3? One thing theatre artists are genius at is INTIMACY. We learn to trust, love and tease someone we barely know much sooner than folks at average jobs because trust is so important in our business. We specialise in being fools. And fools are sweet and sharp and we GET each other's foolishness. There isn't any time to put up walls. Walls (besides the 4th) are the anathema of good theatre. You just have to TRUST that the person next to you is going to get his set piece in place, so you won't trip, so the play can move forward. You open yourself to vaguely inappropriate jokes and innuendos, because you won't know each other 6 weeks from now. The skill is: become a family. Love each other. Work hard. When the play is done, you will have a VERY friendly divorce. Until the next time you work together....