I have advising advice for advisors – don’t give advice, that’s my advice, which I also advise you to advise others (about this advice, of course).
Joking, aside, that’s my tip: don’t give advice.
Sure, you can say things which help people notice – “Look, I notice you do so-and-so”. You can express how this impacts you “You doing so-and-so makes me feel so-and-so, and I generally need to take this action in order to …”. So, do tell people how they impact you and what a specific action makes you feel.
On another hand, saying “You should do this” is, in my opinion, a poor solution.
The main reason is that this makes the advice easy to reject.
If you tell me “You tend to …”, I can accept this or reject this. If you tell me “You should do …” / “Why don’t you …” / “I think you should …”, I will definitely have a tendency for rejecting this.
It’s not my idea (“Oh, I need to do so and so”), but a foreign one (“Oh, X told me …”). Thus, I’ll fight it.
