"In October 2008, members of the networking website Bebo beamed A Message From Earth, a high-power transmission at Gliese 581 c, using the RT-70 radio telescope belonging to the National Space Agency of Ukraine. This transmission is due to arrive in the Gliese 581 system's vicinity by the year 2029; the earliest possible arrival for a response, should there be one, would be in 2049."
They may reply watching Star trek? or we really enjoy Jimmy jones and the 700 club.
Or they might say you people are not worth our time. We've been watching you for years but that religios shit you believe means that you are not ready to join the Galactic Empire!!!