If a member requests assistance, it is best to volunteer it at a private meeting between the two of you at another time. A phone call also works. Confidentiality is paramount . This cannot be over emphasized. This includes talking to your spouse or significant other about who said what in the meeting.
Nothing discussed in the meeting goes out of the room.
If a confidentially breach is discovered is it wise to ask the guilty party to leave the group. No subject is taboo. The focus must be on expressing your thoughts and feelings about what is happening in your life. Avoid chit-chat about the score of the big game or other less important stuff you can talk about at another time. This will free them up to speak whatever is on their mind.