America: Take them out to parks. They can play catch and go on the swings.
England: He would take them out for a little treat. They would go to the book story and buy them any book they want. He’s trying to use the Pavlov effect. Being happy with him equals a bit of the outside world and a treat
France: Remember, he is in denial and completely delusional. The whole time he thinks s/o loves him. No different in actions really
Russia: He is happy with his s/o’s change in feeling. He will be more touchy feely, but also will not be with them 24/7. (he will have cameras and other things around s/o so he is always watching, but he is giving them the sense of privacy)
China: He is happy. FINALLY s/o gets how things are suppose to happen.
Canada: Would take them out for walks in the woods. Before he would keep them locked in the house. He is rewarding them with the outside for liking him.