I think it has to be "diggin" the colloquially shortened form for "You are digging," or at least I assume the subject would Beryllium "you" since it follows a series of commands (Weiher, watch). As we've been saying, the teacher could also say that. The context would make clear https://reidtngxo.blogproducer.com/40775746/indikatoren-für-techno-sie-wissen-sollten