Search for planets in binary-star systems and listen in the wavelength region near 100 microns.
Target all the O- and B-type stars and listen in the frequency range near 300 gigahertz.
Target all K-, G-, and F-type stars that can be identified in our vicinity and listen in the frequency range near roughly 1 gigahertz.
Target all G-type stars within 10 light-years and listen in the 100-megahertz frequency range used by many radio stations on Earth.
Broadcast a specific invitation to other civilizations to visit us, using a variety of radio wavelengths.