What should I do if the girl I met on a blind date doesn't reply to the message or responds slowly?

Since we met on a blind date, we can know the girl's attitude towards you through the introduction of the introducer. If you have the idea of continuing to communicate, just because texting is too troublesome, you can contact by phone. If people don't want to continue, there is no need to contact again. What do you think? Sometimes girls may feel embarrassed or afraid that direct rejection will hurt each other, so you don't feel the meaning of rejection. It is also possible. Wish you success!