Callback humor is talking about something you two discussed that was either funny or interesting. If it was something funny, you’d text her about whatever it was that made you laugh. Any type of text would work. All you’re really doing is bringing up the good emotions that were released with whatever that subject was that caused the humor, thus making her recall a pleasant memory and associating that memory with you.
I always text my girl that I hope I’m in her dreams and she always ends up dreaming about us and it makes her love me even more. She told me that I had some sort of power over her dreams that I could make her dream about me and dream about us. I was kind of shocked too but then I tried to do it on myself, like you know, wish myself a dream where we both were together and I dreamed of her. I actually did and it was amazing. I did it every single night and she was right, I had some sort of power over dreams. I tested my power out on her again. I told her that she would be dreaming of us fucking as a joke but she really did! She called me up and said she wanted me. LOL