At first you will be prompted to choose a window size. Older browsers and slower computers will have less trouble with the small setting. Like command-line operating systems, Lexicon can be controlled using words that reference pieces of software. This modular software is documented. See also command help. Words typed into the text-field above the main image will be visible to other people who are connected simultaneously. If the words you type are chosen from among the special code/words, corresponding visual effects will be seen by everyone who is currently connected. A more permanent mark can be left by writing scripts. Once submitted, these scripts can be read from the archive.