It is a blue-green one with a white "v" on it. Tap once to open up the app. It will automatically take us to our home page, which is indicated by the bright white of the house icon in the bottom left-hand corner.
It looks like a speech bubble with a smiley face. Tapping once will open up our messages. We haven't actually got any messages. We are in the "Friends" tab, which is where we would have messages from friends.
We've just shown you where you can view your messages on the Vine application on the iPhone 6. If you have any questions, comments or queries, feel free to add them into the section below and we'll do our best to get back to you.