Just remember to make room for others if they get cold!
While Friday is generally Viet/semi-formal wear, prioritize warmth & comfort, especially if you run cold.
The ground will probably be wet and muddy outside so wear comfortable shoes (rethink those stilettos y'all...) Wear at your own risk; although if you do, power to ya!
For Saturday, the weather will be warmer and all events are now indoors! Remember it's Desi/formal wear.
Consider packing umbrellas and/or rain jackets; they might useful when walking to venues from parking lots.