A method of controlling an electronic device that has a touch-sensitive display includes detecting a touch at an area associated with a character displayed on the touch-sensitive display, adding the character to a character string, identifying, from stored data, objects that at least partially match the character string, determining a next character of ones of the objects identified to yield a set of next characters, increasing a size of an area associated with each character of the set of next characters, and reducing the size of the area associated with each character of the set of next characters with time absent detection of a further touch.