yes, you can say 봐줘. However, it's more natural (even if it is informal) to say 여기 봐봐 (look here) or 저기 봐봐 (look there). To say "listen," you can say 들어봐 (listen), 잘 들어봐 (listen carefully), or 잘 들어. Please note that these are all in informal forms.