Diet!

Assuming the average life span is 65 years, this thing would happen less often that once per day. Write a check.
Implanted GPS for a person? Good grief. I would do our wandering cat first! Are there that many people who don't trust their partner?

Sneeze?

See a doctor.

flip the bird

ride an elevator

listen to their favorite song

yikes! I wouldn't even track a cat, let alone a 'partner'! that's creepy.

I'll say laundry. :)

answer trivia quizzes!

Cut their nails.

I realize these trivia items are light and fluffy, but as regards the GPS thing, if 20% of those asked would be interested in GPS tracking their partner, I'll speculate that 80% of that 20% were female respondents.

Drink a cup of coffee, except my husband who has never had one cup.

I dunno about that! I've certainly had trusting partners and untrusting partners snidely. Maybe you're more secure than the average male, but they aren't all as secure as you are. Might depend on how the GPS person looks, which could sway the jealousy number. KIDDING!

Nah, my speculation came from the thought that this was something that arose from stereotypical gender differences that we're all well aware of.

Warning, male opinion coming, females easily offended should stop reading.

I believe women can be more nosy and indirect than men. A sneaky tracking ability would provide fodder for intrigue. In the same situation, most males wouldn't care. I'll leave it at that for this mostly female audience. I'm just guessing, not that there's an answer or that it matters.

Cut their hair. Or shave hair.

Fill their gas tank.

Eat out.

Snidely, I believe it was a woman (Lindsay), after all, who came up with the correct answer. ;-) Only kidding, ladies.

On the real, though, I wonder if the guesses we provide here give any insight into our psyche? I'm certain Lindsay isn't a rabbit boiler, after all??

Talk to their mother?

Women tend to talk to their mothers much more frequently than men do. If you average them together it seems like a plausible answer.

Laundry.

blink their eyes

Grocery shopping.