He notices the small details.

The noticable error in the document was quickly corrected.

The noticers in the crowd quickly spotted the celebrity.

The noticer spotted a small bird in the tree.

The noticeableness of her outfit caught everyone's attention.

The noticeabilities of the artwork were evident in its intricate details and vibrant colors.

I am on notice to improve my performance at work.

She walked past him, un-noticing his presence.

She was un-noticing the small details around her.

I need someone who can be ready at a moment's notice.