现在在课堂上使用的“好”手势是不可接受的吗？

While teaching a class last week, I made the widely-recognized hand gesture (an open circle with the thumb and index finger, with the other 3 fingers loosely or sharphy extended... I'm not sure exactly how mine looks, as it's like muscle memory and I don't consciously think about the exact shape I'm making) while simultaneously saying "okay...". I can't remember the full sentence but it was something related to the math course I'm teaching. While teaching a class last week, I made the wi