3) I think- Which of these two statements sounds more authoritative?: “I think 
our company might be a good partner for you.” Or, “I believe…” “I know…”
 or “I am confident that our company will be a good partner for you.”
“There is a slight difference in the wording,  “You may have 
noticed, the first phrase contains two weak words, ‘think’ and ‘might.’ 
They risk making you sound unsure or insecure about the message. 
Conversely, the second sentence is assertive and certain. To convey a 
command of content and passion for your subject, substitute the word 
‘think’ with ‘believe’ and replace ‘might’ with ‘will.’
4) No problem- When someone thanks you, the courteous and polite reply is, “You’re welcome.”
“The meaning implies that it was a pleasure for you to help the 
person, and that you receive their appreciation,” “Though 
the casual laid-back phrase, ‘no problem’ may intend to communicate 
this, it falls short. It actually negates the person’s appreciation and 
implies the situation could have been a problem under other 
circumstances.” In business and social situations, if you want to be 
perceived as well-mannered and considerate, respond to thank you’s with,
 “You’re welcome.”
