Be mindful of your gestures when speaking in public .

This hadith is about the Prophet Muhammad's gesture while delivering a sermon. It was narrated by Umara b. Ruwaiba that he saw Bishr b. Marwan on the pulpit raising his hands and saying "Allah, disfigure these hands! I have seen Allah's Messenger gesture no more than this with his hands, and he pointed with his forefinger." This hadith shows us that when delivering sermons, it is important to be mindful of our gestures as they can convey powerful messages to those listening to us. The Prophet Muhammad used simple gestures such as raising his hand or pointing with his finger to emphasize certain points in order to make them more memorable for those listening to him. This teaches us that we should use simple yet effective gestures when speaking in public so that our message can be conveyed clearly and effectively without any distractions or confusion from unnecessary movements or words.