This guy and I just started working together. Our first shift was just the 2 of us at a park (we work in event planning) for about 3 hours. At the start of the shift, he didn't stay too close to me and didn't really chat. We chatted a lot during the shift (I asked most of the questions). At the end we had to take a ferry back and his behaviour was totally different. He stood so close to me that some people near us were staring at us, like they thought we had a thing going. He also found a spot for us to sit together on the boat (super-close). I asked if I could see some pics he took and he said yes. I had to lean in realllllyyyy close to see him and he seemed comfortable with that.
Why did his behaviour change so much?