Take Shelter - S1-E5
Jessica Jones: Nice ears.
Daredevil: They're horns.
Jessica Jones: You look like an asshole.
Matt Murdock: It's your scarf.
Ashes, Ashes - S1-E6
Revealing mistake: It's pretty obvious that Scott Glenn, the actor playing Stick, just has his hand wrapped up to look like it has been cut off. Both his hands are at equal length when his arms are down by his sides.
Trivia: While Matt is walking on the sidewalk there is a banner of Stan Lee beside a truck.