Visiting DF (Mexico City)

Hello Everyone,
i will be in the DF this week due to a business trip. Since it is my first time in town i would love to meet new friends and receive some advice regarding good restaurants, must see places. Besides the get together, is there another nice activity hapenning during this week?
I will be glad to return the favor if you come to visit Buenos Aires.
Have a lovely week,
Claudia