Old people are actually more communicative than young people. You belong to the Social Welfare Bureau. It's better to make your opening remarks more official, because most elderly people are still willing to cooperate with some official activities, but don't be too blunt when chatting with the elderly. Officials don't mean blunt. It's like talking to grandparents. You can say, "Hello, Uncle and Aunt xxx, we are from xxx Social Bureau. For xxx (it can be said that the country has some policies to help the elderly), we need to know some personal information with you now. Is it convenient for you to see the time? " Start chat mode later. Don't list questions like 12345, but mix the questions you want to ask in the dialogue.