Your friend tells you that he wants to take an "Introduction to Spanish" course to boost his GPA even though he is a native Spanish speaker. Native speakers are not allowed to take the course. What do you tell your friend?
Tip #1 on giving great feedback
Concentrate on the behaviour, not the person. Avoid feedback that cannot be acted upon.
Tip #2 on giving great feedback
Be specific. Avoid general comments that may be of limited use to the receiver. Try to include examples to illustrate your statement.