The term 'sizes up?' can be answered by three words: alters (6 letters), eyes (4 letters), and assesses (8 letters). Alters means to change or modify something, usually in a minor way. Eyes refers to the sense of sight, which is used to observe and take in information. Assesses means to evaluate or judge something based on the information gathered. Together, these three words can be interpreted as 'observing and evaluating something in order to make changes'.