Spell check
He was noticing that the same car had been following him all day.
The word could be; Acknowledge, aware.
Most people spell the word Health as helth not noticing the "a"
to be observant: to be hard to hide things from, to notice everything.
connecting a word to another word
you mean excell its ok mistakes are mistakes
Its facitious
I joyfully danced with this equipment not noticing that it was a hammer
It can be more than one part of speech. My mistakes are legion. (= noun) He often mistakes me for someone else. (=verb)
In a sentence, the subject is the word that tells what it is about. In the sentence "watching the light turn yellow" the subject would be the word watching.
infallible works for that
The word "perceptive" describes someone who is good at noticing and understanding things quickly and accurately. It refers to a keen awareness and the ability to grasp subtle details or insights that others might miss. A perceptive person often has strong observational skills and emotional intelligence.