Joke Collection Website - Talk about mood - Please tell me what the following sign language means

Please tell me what the following sign language means

Sign language has great uncertainty, and sometimes the expression is relatively vague. It needs to be understood in conjunction with the scene, expression, direction and magnitude of the movement, etc. at the time. Punch expression (to hit, move, etc.) Waving hand expression (goodbye, no, waving hands in front of face to express vagueness) Extending hand expression (giving, retracting hand to express request) Hiding hand expression (uncertain depending on the position of hiding) Applause expression (welcome, welcome, etc.) Celebrating, applauding) Thumbs up (pinyin letter A, good, great) Thumbs up (bad, dirty, bad, cloudy, etc.) and waving downward (calling people over)