[ Now there's an interruption that Ford wasn't expecting - largely because he's been engrossed enough in the game to not notice Sayo edging closer. He blinks, caught off guard, but only a moment later he's smiling again as he resumes his explanation for John. ]

That's right! Each character is limited to one reaction and one bonus action per round. If you have an idea of your DM's tactical preferences you can try to goad them into using one of the two on less potent options.

[ To Sayo, and in a tone of voice that's both approving and curious: ]

Well-spotted. Usually only somewhat advance players can pick up on nuances like that.