Touch wood or knock on wood is a popular saying to reverse any bad luck that might come your way, due to a recent action you have taken or comment you have made. The superstition is that if someone remarks about something not wished for, or something that has not happened lately, they should immediately touch or knock on wood to avoid the fulfillment of bad luck, or the event not desired. For example, people are likely to touch wood immediately after answering a question in the negative, such as "no, I have not been sick lately." In China, people spit after making a bad luck comment, especially in the Chinese new year season. Touching wood after boasting of one's good fortune, or exemption from bad luck, was thought necessary to keep the streak of good luck intact. Touching wood is also practiced after an activity or event that has gone excessively well. As an example, if you give a good presentation you should touch wood afterwards to continue the success you are