1 Looking down
When a person feels ashamed of themselves or of something they have done, they might look down towards the floor instead of looking up.
2 Avoiding eye contact
When a person feels ashamed, they might find it hard to look people in the eye. This can lead to weak or almost non-existent eye contact.
3 You take less space
When a person feels ashamed, they will feel that they want to hide. This will let the person take less space because they unconsciously think that this move makes them less visible.
4 The neck disappears
When a person feels ashamed, their shoulders might get raised and their necks might sink inside their bodies. It's another indication that the person wishes to hide or disappear.
5 Covering face
If the situation is too shameful for a person, they might actually cover their face with their hands. (See The body language of defeat)
6 Darting eyes
Darting eyes are one of the signs that indicate the presence of emotions such as shame or embarrassment.
When a person feels very ashamed, they might avoid social interactions completely. The person might seem anxious as they approach other people. (See The Body Language of Anxiety)
8 Curved back
When a person feels ashamed, their back will become curved. This is considered an attempt to hide or to take less space to not be seen.