Answer:
"He is stand-offish and keeps to himself".
Step-by-step explanation:
After reading the excerpt from "After Twenty Years", the character can be inferred as "stand-offish and keeps to himself". This can be portrayed by his behaviour and his actions like lighting the cigar, showing the paleness in his eyes, and the scar near his eyebrows. The diamond which is stuck in the scarfpin shows that he has a status and is also rich. He keeps to himself because he lights the cigar on his own without concerning about others.