I mean, I guess this doesn't apply if you're a really confrontational, assertive kind of person. Which I'm not.
For me, it feels safest to keep quiet about a person's shortcomings even if those things bother me. If I ever get annoyed at a person, I take it out by journaling or thinking it through in some other way or by talking to someone about it.
That changes if I really know you! If you're one of my closest friends, you can expect me to tell you what bothers me about you, and usually with a laugh. It's less painful and more fun for everyone involved if I make it a well-meaning, this-bothers-me-but-I-love-you-so-much-that-I-won't-even-bother-making-a-big-deal-out-of-it-because-I-see-past-it-to-the-REAL-you-inside-that's-so-beautiful-that-it-totally-eclipses-anything-that-could-possibly-be-bad-about-you...well, now I've lost track of this sentence, but you get my point.
Maybe I figure that if I don't spend a lot of time with a person, it isn't worth pointing out something like that to them? I'm not sure. But I do wonder if this is just me or if everyone is kind of like this, so leave a comment and tell me how you deal with the faults of your friends!
I think I'll leave you with another list today. Please enjoy the sacrifice I make in writing up things like these lists, because it's purely for
10 Childhood Activities That You Should Try Again Soon
1. blowing bubbles
3. finger painting
4. climbing all over the playground
5. playing dress-up with someone else's clothes
6. breaking out all the toys
7. watching Winnie-the-Pooh
8. chasing the opposite sex around the playground
9. hanging your best work on the refrigerator
10. bed-time stories