Variation in speech delivery is important. It can be easy to fall into habits that establish almost unconsciously.
This often relates to the commencement of sentences, where answers to questions are being provided.
A common response is an answer with the sentence commencing with the word “look”. If this becomes a habit, listeners won’t listen for the response; Rather they will listen for “look”.
“Now look” can, in the same way be an everlasting sentence beginning. “So” is another
The list goes on. Be careful when phrasing answers, not to fall into this repetitive habit.