What is another word for sit up and take notice?
Pronunciation: [sˈɪt ˌʌp and tˈe͡ɪk nˈə͡ʊtɪs] (IPA) 
When it's important to pay attention, it's time to "sit up and take notice." However, there are many other ways to say this. One alternative is "take heed," which means to listen carefully. Another option is "put on one's thinking cap," which means to focus and concentrate. "Be on the ball" or "keep one's eyes peeled" are also great synonyms for paying close attention. If something is really significant, say "standout" or "grab's one attention." Finally, if it's important to not miss anything, "be all ears" or "give it one's full attention" are excellent alternatives to "sit up and take notice".
