# Look-alikes variables When users [find look-alikes]() for an audience, Orbit tests the variables you choose here, to find the ones that best describe the audience. Users can't find look-alikes until you've chosen at least two. Until then, they see the message `Solution is not available, Contact your administrator to set up variables`. ## Choose look-alikes variables Choose variables that might describe the kind of people you want more of, such as demographics, segments, or how they first came to you. To choose look-alikes variables: 1. In **Application Settings**, select **Look-alikes Variables**. 2. Add at least two variables. They must come from the audience's table or a table above it, such as People or Households. [![The Look-alikes Variables page, with Gender, Income, and Just-A-Cluster variables, each with a bin icon]()]() 3. Select **Save**. To remove a variable, select its bin icon, then select **Save**.