I believe it was called civil disobedience.

Violent revolution always end in sadness, blood, and typically a nasty vile dictator. So they are not the way to go. Besides, your movement will probably lose a lot of credibility if you go around blowing stuff up. So what's a revolutionary to do?

Work peacefully. Share ideas with others, pratice civil disobedience instead of stirring up mobs of angry people. Mobs can be rather difficult to manage anyway. In the long run you will gain the respect of those not on your side, and possibly get group members into positions of power where they can make a difference. Then the hard part begins: not forgetting the ideals that got you into office!