How to use "noticing" in a sentence

I'm always thinking of the things I want to achieve and not noticing other people

Not noticing Jean Valjean sitting by the side of the path, he threw the coin higher into the air

Putting them in his jacket pocket, he went out and continued to wander aimlessly around the streets, noticing only occasionally the strange atmosphere of excitement that was growing in the town

Then, noticing the pool of blood on the ground behind her, cried, 'You're wounded! I'll carry you to the inn