Start by getting up close and personal with wildlife at the Giraffe Centre and the David Sheldrick Wildlife Trust. A visit to Karen Blixen's House & Museum is recommended for Out of Africa fans, then go shopping at the Kazuri Beads & Pottery Centre and Utamaduni. In the evening, dine at Carnivore and dance at the Simba Saloon.
On day two, head downtown to visit the National Museum, view the city from the Kenyatta Conference Centre, and step back in colonial time at the Railway Museum; for lunch, join the throng at the nearby Nyama Choma Stalls. Have a drink at the legendary Thorn Tree or Lord Delamere Terrace & Bar. In the evening, eat posh at Talisman and have a whole lot of fun at Simmers.
Spend the best part of your third day in Nairobi National Park; take a picnic lunch and visit the Nairobi Safari Walk and Animal Orphanage to break up the morning and afternoon wildlife drives. Have dinner at the Karen Blixen Coffee Garden.