fold (one's) hands
To interlace the fingers of one's hands, with both palms facing each other. I sat down, folded my hands, and tried my best to look confident as I waited for the CEO to come in.
fold one's hands
to bring one's hands together, palm to palm, with the fingers interlocking; to grasp one's hands together, palm to palm, perpendicular to one another. Please fold your hands and put them on the table while the teacher reads you a story. Please fold your hands and be quiet.