The planet Earth is a noisy and active place. Full of radio transmissions, pollution, bustling cities, and billions of people making it all happen. Assuming that in our universe, we are accompanied by other highly developed intelligent life forms, they most likely would be doing something similar on their worlds. If that is the case, then we should have a very clear picture of what to look for during our search. Last time we looked at humanity’s willingness to accept the concept of alien life. Now we examine our efforts to find it.