When I do have contact with my W I am making sure I thank her constantly for anything she does that is in my favor. I do it by just saying “thank-you”, “thank-you very much”, or “I really appreciate it”. I do not say “I love you” or get mushy, I just really try to show my gratitude as you would if a friend or stranger were doing something nice for you. With that said, can I ever slip in compliments about her? Or would telling her she is nice, kind, wonderful, “the best” just come off as pursuing?
I would not compliment her directly - the one time I did that to H after he moved out his body language changed to very uncomfortable. On the other hand, if I find a casual way to bring up something I appreciated that he did in the past, he seems to listen without getting aloof.