There’s a list of the awards here with descriptions of how to earn each one. The only exceptions are the secret awards (the ones at the bottom with the white badges), which you have to figure out yourself.
A few of the awards cannot be earned anymore (Eeee eeee eeeee, Plank Walker, Autobiographer, and Old Timer), a few of them are broken (Channel-crosser, Circumnavigator, and Robot Crush), and at least one has conditions that are currently impossible to fulfill (Guacamole).