The tongue tip effect refers to things that are familiar to people at ordinary times. People just can't think of it for a while, and they have a feeling that they can't speak at the mouth, especially when they are nervous. According to the above definition, Which of the following are the effects of the tongue tip:. ["Old retired grandson sees colleagues from the same office on the street. The colleagues greeted him warmly, but grandson just couldn't remember the name of the colleague.", "Xiao Wang went to an advertising company to apply for a job. In the face of the recruiter's questions, he calmly calmed down and responded eloquently, but when the recruiter finally asked his expected salary, he was difficult to talk about.", "Mr. Jiang always talks in a chat. On a blind date, he meets a favorite woman. When he is nervous, he becomes awkward, and I don't know how to talk to each other.", "In a math test, Xiao Zhang encountered a problem. His brain was blank and his heart was anxious, but he didn't know how to answer."]