using sentence markers system such as "beginning of sentence. \[...\] mid-sentence \[...\] mid-sentence \[...\] second sentence beginning. \[...\] last sentence beginning. \[...\] end of sentence" it's an example. the system can be in any form. and disclosure of secondary behaviors that should not be mistaken as non-verbal signals. and rehearsals with a few friends. and one more thing. say no if the teacher offers one-on-one rehearsal just for you. and in that case, tell your friends that the teacher made this offer and that you said no and describe how the teacher reacted.