I don't know what it is about their baby daughter, but she is absolutely fascinated with me. Practically anything I do is greeted with a huge grin and a mesmerized stare. I've gotten this kind of reaction from babies before so it's not surprising, but that was generally just in passing. This is on-going. We're at day five now and just seeing me on the sofa in the morning while she's eating breakfast is like the second or third happiest moment in her entire life. I direct a "Hi", a wave, or a smile in her direction and she's off again.
(... Wait, that sounds an awful lot like the Unicorns in Mercedes Lackey's The Five Hundred Kingdoms series. o.O)
The odd thing is that my sister's baby doesn't react this way, yet my oldest sister's oldest kid did when he was a baby some 14 to 15 years ago. On the other hand I don't feel all that close to my sister's baby. She keeps trying to force her on me, like "This is your niece, now hold her!" She thinks it's exciting and grand, but ... I don't. *shrug*
*shrugs again* We'll see if she's still doing that by the time I leave Las Vegas on Monday.