Depending on the context, it could mean that they were cold and dead, or it could mean that he angry... freezing the person out, in a way.
She's really flattered...that or she's flirting.
You may be petting him/her to hard or your dog is closing there eyes cause there loving your pets.
A "party to the conversation" means a person involved in it. For example, a conversation between two people has two parties to the conversation. A conversation between 7 people has 7 parties to the conversation.
it means she / he likes you
When a person's eyes are fully opened when he is surprised with fear, it is said that his eyes widened.
Do it/try it/attempt it. 'It' being the subject matter of the conversation.
Anxious/Anxiety
If a person in a coma opens their eyes and their eyes are black, this could mean that their pupils are very large. This could be a side effect from any medications they are on.
I think it means that the person has open the window conversation at the same time as you. That's just what I think, 'cause it happened to me too. you :) (sorry for my bad English XD)
eyes are the first informer of our heart. everybody can understand the language of eyes and a person without eyes is a person with a very big heart
On Instagram, if you are mentioned, it means the other person has tagged you to include you in their conversation.