I recieved Circle Degree at the last convention.
As for attire...
1. the meetings and sessions during the day are badge attire
2. Initiation/Circle Degree that's obvious
3. Laurels Banquet is dressy
4. Festival of Lights is dressy
5. There are some fun activities like pj party/t-shirt swap.
Here are some of my pictures from Nasville
Festival of Lights (this is Monday Night)
Laurels