Help Commander Zorg finish his observation report about human behavior by dragging the correct words into the blanks.

The humans are staring at tiny glowing rectangles. I am watching them very closely, but they don't seem to notice me hovering outside their window.

The humans are staring at tiny glowing rectangles.

The subject "The humans" is plural, so we must use "are" followed by the present participle (-ing) to describe their current action (looking at their phones!).

I am watching them very closely...

The first-person pronoun "I" always takes the auxiliary "am" in the present continuous tense.