I think that I sillily hurt two kids feelings 🙁

Two adorable kids were talking holding their mom’s hand. And they unexpectedly said hi to me. I said hi back but I ended up laughing because it was so unexpectedly adorable and synchronized. I think I hurt their feelings by laughing 😅. I am just not used to people that I don't know say hi to me on the streets, let alone kids 🥲