[header] How to identify a sussex spaniel [title] Assess the dog's face. [step] Looking at facial expression of the sussex spaniel is important for identifying the breed. Overall, the dog has a somber and serious expression, although this does not express its actual personality. 
It has heavy eyebrows, which are the key feature that creates this frowning expression. [substeps] The dog's eyes are large and hazel colored, with a soft and passive expression.