Would you ever visit a deceased friend/family members grave and verbally talk to them?
Yes - I do.
I visit my father's grave and talk to him and periodically take two beers and give him one while I'm there.
I vist my father's grave every week, to tell him all about my week.
I don't visit grave sites.
No. When I think of some of my deceased friends and family and wish to communicate some feelings. I just take a quiet moment and talk to them. I believe if their spirit is still in existence they will hear me and if they don't exist it still brings me some comfort. I feel no need to go to their graves. Anyway, many of them don't have graves since they have have been cremated.