A ruse is a false action to diverts attention from a real action. For example, having a beautiful friend in the stands flirt with your opponent just before and during a match, or pretending to be left-handed when you are really right-handed or ambidextrous.
You cannot make people not think about something; you can only make them think about something. An example is to play the William Tell Overture and tell people not to think about the Lone Ranger. If confronted by two attackers andyou say, "Do not look at me" to the closest attacker, the person will have the urge to look at tyou. However, if you say, "Do not look at me" to the other attacker, the closest attacker will probably not watch you and may direct his or her attention toward the other attacker, giving you the split second edge you need to take out the lead attacker.
A maneuver is a carefully planned and skillfully executed course of action that has no apparent offensive or defensive purpose. For example, slowly moving until a wall is behind you so you may be attacked from behind.