Successful group interactions require active participation by members of the group. The aim is to fulfil the objectives of the meeting. In meeting the objectives of the meeting, the first thing a group may do is brainstorm for ideas. Then, gradually, through question and answer, irrelevant ideas can be weeded out and the group can come to a consensus. To this end, each member of the group has a role to play. Usually there is one person who manages the discussion. This person is either appointed by a higher authority or by the group, and has to open the discussion, introduce the subject, invite people to contribute ideas, interrupt to seek clarification, and finally close the discussion. The other members of the group are to put forth their arguments, substantiate them, negotiate, interrupt politely to ask questions or seek clarifcation, etc. If the discussion is managed well, members are cordial and polite to each other and the discussion may turn out to be a fruitful and enjoyable event.