What criteria would extra terrestrials use?

If you were an extra terrestrial and had just arrived in our solar system, in peace, and were looking down on Earth and had to choose a nation to approach first, what criteria would you use to decide? Would it be a small country, or large? Influential, or not? Would it be a country whose beliefs were closely related you your own? Or one that had the most weapons? The option of contacting the entire planet at the same time is off the table for this question.

Thanks!