Iconic gestures are different from other gestures in that they are used to show physical, concrete items. Iconic gestures are useful as they add detail to the mental image that the person is trying convey. They also show the first person or second person viewpoint that the person is taking.
Contract litigation is the pursuit in court of legal remedies when contracts are broken or otherwise become subject to dispute.
Litigation is what goes on in court; it is the name for the process of suing someone or trying them for a crime. When families fight over their inheritance, the assets they want may end up being tied up for decades in litigation.