Example.

I opened the window and it became open.

Someone who is shy will still smile and generally be a pleasant person…just not necessarily open and extroverted. A shy person can be outgoing, but is not always the first person to volunteer to lead a large crowd. If you are a quiet person then you may come across as guarded and yet friendly. A snob will tend to discriminate to his/her liking against people for their own reasons and can be perceived as obnoxious, stuffy and outwardly guarded against a certain demographic. A snob will think they are better then others around them and through body language and/or verbally make this known. A snob thinks highly of themselves and ensures others know it. Snobs arent regarded as friendly people, in the sense your friend is speaking about. One can easily tell the difference between a quiet/shy person and a snob by how the person acts when a stranger speaks to them. A stereotypical snob will usually act entitled. A shy person will act normal and you will notice right away that they are just quiet and not being quiet because they are selective. That being said, I have known shy snobs. So just because you are one doesnt mean that you cant be both. I dont mean YOU personally, but I mean that both traits can be found in the same person…but obviously your friend was telling you that you aren’t both. Just quiet 🙂

2. The window was always open.

RE:
Please tell the difference IS OPEN vs IS OPENED?
Please explain the difference between.

1. The window is opened.

2. The window is open.

Thank you.

The window is opened: “opened” use as a passive voice, means it is opened by some one.

“This window is open” means this is an open window. “open” is used as an adjective. In the previous sentence “open” was used as a verb-PASSIVE VERB.