A propaganda group must first work out its basic politics. This is often done by small groups of people who debate and discuss at a fairly theoretical level before venturing out to attract people on the basis of those agreed ideas. Where possible, given its relatively small size, the actions of the propaganda group, themselves an expression of the ideas and a test and forge of them, can also attract new people. On top of that it builds a cadre around the ideas, a group of people capable of making the arguments to others and intervening in real activity where the group can and as it determines appropriate. The ideas and agreement with them are the foundation block of the group and its ability to intervene and attract (or not attract) others.