I love the Sims 3 animations...at least the ones that don't get tiring - like the idles but there are mods to tune them out.
The "Eureka...I found what I was looking for" animation.
https://1.bp.blogspot.com/-_1X1D5lhUos/X2k_QpEQBFI/AAAAAAAAjZM/KKKnksUuycQxfrwpjBa8kR_5jyvl-lyCgCLcBGAsYHQ/s0/Screenshot-4.jpg
The "Wooah...nice place..." look on their faces when they walk into a newly decorated lot.
https://1.bp.blogspot.com/-cH51G5Hh2S8/X2k_QRK7OVI/AAAAAAAAjZI/zP1GMpPfF2skodlunX4VRweVnQuxME2qwCLcBGAsYHQ/s0/Screenshot-21.jpg
The "Cool...new stuff..." look when they walk out of the bathroom and see you've placed new stuff in the house.
https://1.bp.blogspot.com/-rqfAoifjIxk/X2k_QDzINtI/AAAAAAAAjZA/sBU2phuk5N0QM1LTsS0U46vhHXzHKqnNACLcBGAsYHQ/s0/Screenshot-26.jpg
Well, this isn't an animation, but the cute way in which Bebe is taking a nap on the loveseat...well...it's just adorable.
https://1.bp.blogspot.com/-ZCDhN10WdM4/X2k_QXIQTfI/AAAAAAAAjZE/tckg8STmOc8dUllZSlnGT119cusBB5UKgCLcBGAsYHQ/s0/Screenshot-28.jpg
...and I'm a 50 yr old guy...and this kinda **** warms the decrepit cockles of my decaying crusty old heart.