A downhole tool including a body having a function relevant to a selected environment, an electroactive polymer (EAP) anchor disposed with the body and configured to expand, upon application of an electric signal to the EAP, into loaded contact with a tubular member in which the downhole tool is to be set during use. A method for managing a borehole including running a tool to a selected depth in the borehole, applying an electric signal to the EAP, and anchoring the tool with the EAP. A borehole system including a borehole in a subsurface formation, a string in the borehole, a tool disposed within or as a part of the string.