Did you use any of these phrases? What other phrases might you use?

You may want to look into ways of...

I think that it would benefit you if...

One thing to work on in particular is...

Perhaps you could have...

Keep in mind that...

You need to be able to

Have you considered that..

Arrogance/interviewee/interviewer

What constructive criticism could you give to your boss?

We should make others think they lose their faces