Yes. You will see people dressed in a lot of different ways. But you will likely have to walk across streets and parking lot to enter the building, so keep it somewhat comfortable. Hope that helps.
Yes
Yes but bring a light coat. It gets quite chilly inside
There is no real dress code.
You see people in all manner of dress.
I don't see that being a problem. Especially because of the heat! People wear everything from business casual to jeans and t-shirts.
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