My favorite things to do with Brooke were:

-nap/cuddle with her
-kiss her
-run my hands through her soft ears allllll the time
-when she used to jump up on me and give me a big kiss on the mouth
-play games (like hide and seek, find the kibble under the bowl and go through her toys one by one to find which one she wants.)

and with Riley:

-nap/cuddle with her
-work on her training and "homework" for obedience school
-take pictures of her
-helping her play with toys