If Xavier is considering whether to comment that his friend looks tired by asking the THINK criteria questions, he might answer "yes" to the following:
- Is it true? - If he genuinely believes his friend looks tired, then the answer could be yes.
However, he would likely answer "no" to the other questions:
- Is it helpful? - Commenting that someone looks tired is generally not helpful.
- Is it kind? - It may not be perceived as kind to point out that someone looks tired.
- Is it necessary? - It is likely not necessary to make that comment.
So, to summarize, "yes" could apply to Is it true? if Xavier genuinely thinks his friend looks tired.