depressed kitty?...

as some of you may know, kuan yin was spayed on monday. she has improved greatly..just gets tuckered out very easily now (it's only thursday night here in the U.S. so it hasn't been too long since surgery)..she's eating, playing a few minutes here and there, using her litter box, and shows no real signs of health issues..except...
i may seem like a worry wart for saying so but she seems...depressed.
i don't work so i spend A LOT of time with her so i like to think i can guage her personality changes. she's very cuddly and at times seems lovey but sometimes she just wants me to hold her and has this sad look about her..just seems very depressed. i'm thinking it'll pass with the healing so my REAL QUESTION is...
do you know of anything besides time and attention and love that might perk her up or help her mood along? i just love her so much and feel quite guilty my baby does not seem emotionally the same...
any suggestions to cheer the wee one up would be appreciated...

She may not feel up to it after her surgery but I build cat "forts." I pull out fun stuff: cardboard boxes, laundry baskets, cat nip and toys and hide treats around a room. Then I take something big like one of those folding racks for drying clothes and I turn it on its side then throw a blanket over it. My kitties have a ball.

I think howtoholdacat's advice is fabulous, especially since you can't play or run her around a tremendous amount after the recent spay.

What we occasionally do for our cats to have what I call "passive fun" is buy a pot of long wild grass at the greenhouse for our cats to play in and to chew.

Another thing we do is to put the kitty tree in different locations for a couple hours, since cats love looking at things from different vantage points.

I hope these help, good luck .