Wait until you are asked. Unsolicited advice is seldom appreciated, even if the party being advised recognizes the truth in what is suggested. Sometimes, people resent being advised even if they ask for opinions. They may only want someone to listen to their problems without offering possible solutions, especially in personal matters. For instance, if a woman tells me what a horrible relationship she has with her husband and asks what to do, she probably doesn't want me to say, "Clean out the bank account and change the locks or leave yourself." She probably really wants me to say, "Oh, poor dear. How could he do that to you? Do you need another tissue?"