I've tried to learn from the one cat.
He gets this half closed eye look and leans forward slightly.
And he goes, "C'mon, pet me.. ya know ya want to pet me."
And, of course, the humans obey.
Yah...I have one of those. He's the newest member of the Clan...he has these amber orbits that seem to fluctuate with his intensity..."pet me...you WILL pet me...pet me....you MUST pet me...if you don't pet me, I will rip your pantlegs to shreds!"
Yepper...I'm memorized by those eyes...