I'm not really sure how to phrase this. My nearly 6 month old girls, who usually run to me whenever I am within eye-shot but shy away from letting themselves be within arms reach, have recently started what I'll call "hunkering down" right in front of me, sort of like squatting. I've taken it as a sign that they want me to pet them so I do... like a cat! I gently massage their skinny little necks and stroke their backs. They seem to like it. Is this normal? Is it a sign of something? Thanks for any advice offered!