I do!! This must be around that time you lost someone special to you? Sorry for being nosy--just concerned.
I celebrate their life in ways I would want them to celebrate mine. Go to a special place and write them a letter--read it aloud to them and listen for their answer. When you feel the change inside your heart--you know they heard it and are telling you they love you back.
I also 'talk' to them when going through a rough time. They may not answer then--but it clears my mind just knowing and figuring out what they would do in my situation. I leave flowers on the graves or other item that meant something. (My best friend gets a piece of my banana bread-she always told me it was to die for.)