Go backwards along a line. Go forwards along a line. Go the the beginning of the line. Delete the character under the cursor. Delete the character before the cursor.
TAB Perform an expansion on the current word.
When the tab is hit, Tinytalk will find the current word, check it against the list of defined expansions and replace the word in the line with the greatest possible expansion. If the person then followed with an 's' and another TAB, then Crimson would be put in. This can be used in conjunction with the history.