1. A method of inputting characters in a portable terminal, comprising the steps of: displaying a plurality of characters on a keyboard; detecting a touch on the keyboard; displaying a first character corresponding to a key corresponding to the touch on the keyboard as enlarged relative to other characters upon detecting the touch; displaying a second character corresponding to a key corresponding to a touch-move on the keyboard as enlarged relative to other characters on the keyboard upon detecting the touch-move without a release of the touch; displaying the second character, which is displayed enlarged when detecting the release of the touch, in a character input area upon detecting the release of the touch on the keyboard; and in response to displaying the second character, displaying a plurality of recommended words in a vicinity of the keyboard in the character input area, wherein the recommended words are determined based on the second character and other characters which have been displayed in the character input area.