What are the ways characters can be described?

The narrator can directly describe the character; "the lawyer was a man of a rugged countenance, that was never lightened by a smile". We can learn about characters about the way they act or what they say; "They are all silly and ignorant, but Lizzy has something more of quickness than her sisters" - we can infer that this person can be very blunt and dismissive. You can also learn about characteristics about how the person behaves; 'Even the blindman's dogs appeared to know him; and when they saw him coming, would tug their owners into doorways and up courts' - this tells us that Scrooge is not a nice person and is to be avoided.