Brush powder on T-zone to minimize midday shine, and apply a light-colored lipstick that looks "done" but won't stain your drinking glass. Pull a pony into a bun to indicate you mean business.
On eyes: Origins Full Story Lush-lash Mascara in Black.
Blazer, $795, Calvin Klein Collection; (212) 292-9000. Bra, price upon request, Roland Mouret; rolandmouret.com for stores for similar styles. Necklace, $1,590, Elisa Solomon Jewelry; elisasolomon.com. Single-band ring, $250, Helen Ficalora; (877) 754-2676. Triple-band ring (worn throughout), from $1,350, Mauboussin; mauboussin.us.