Julie is very subtle about it...she will come up and nuzzle then look me in the eye and do the slow kitty blink. She is not an overly affectionate cat, but when I am down or not feeling well, she is up for curling up on my chest and purring us both to sleep.
The real doctor in the house is our Dog, Buddy. He is the best when it comes to sitting with you and sharing the love.