Rickard is your sworn shield, and you and him are usually close, so people often see him with you all the time like a shadow, which is normal for Kingsguard who are sworn shields for members of the royal family.

In addition, with this level of closeness, your dragon is also close to him, meaning at least he can dissuade your dragon to some extent, and he can speak High Valyrian because you taught him.

Now you are walking along the corridors of the Red Keep Castle, with him by your side as usual, and he says,

"What is your object now, my prince/princess?"