The PSV Eindhoven star agreed to join United last week.
"Everyone here is talking about this transfer," Blind said to Voetbal International. "His signing is exciting for everyone. You notice that not only in the club but also in the city. I am Dutch, so people ask me about Depay. He will quickly discover how big Manchester United is. The stadium, the atmosphere, the supporters ... Everything you hear and have seen on United is right.
"I am confident he will do very well with us. He needs to focus on the things he's good at. His dribbles and shots. And then he just really needs to enjoy it.
"Of course I will give him help. If he needs me, I'll be there."