histrionic behaviour is very emotional and is intended to attract attention in a way that does not seem sincere 矫揉造作的;装腔作势的 histrionic gestures 演戏般的手势
Word Originmid 17th cent. (in the sense ‘dramatically exaggerated, hypocritical’): from late Latin histrionicus, from Latin histrio(n-) ‘actor’.