1. The white folks were acting stereotypically white, sitting on their hands, pained smiles pasted on their faces, occcasionally nodding.
2. 1963 straddled an important boundary in history - in this case, between massive hat-wearing and widespread hatlessness. I didn't notice whether the white folks or black folks wore more hats, but it seemed to me like the split was about 50-50 total between hatteds and bareheads.