A careful noticer of details.    From Wordnet, Princeton University. 

Call flinched, but Pea Eye didn't notice -- Pea Eye was no noticer, as Augustus had often said.    From Wordnik.com.  [Lonesome Dove]

Call flinched, but Pea Eye didn't notice — Pea Eye was no noticer, as Augustus had often said.    From Wordnik.com.  [Lonesome Dove]

Even if he is not a demigod or a Sherlock, as the napping-noticer seemed to have thought in the past.    From Wordnik.com.  [Archive 2007-03-01] Reference

Sherlock Holmes had been sitting on her bedside table for yearsIngrid was a habitual noticer of little things.    From Wordnik.com.  [Excerpt: Down The Rabbit Hole by Peter Abrahams] Reference

Petrov, habitual noticer of little things, saw that his eyes weren't moving, meaning he wasn't actually reading.    From Wordnik.com.  [Excerpt: Oblivion by Peter Abrahams] Reference

And once you notice the noticer, your witness consciousness, you'll bring compassionate awareness to everything you do, enabling you to embody and give your true self -- a divine being of love and light.    From Wordnik.com.  [10 Things I Learned at Yoga Teacher Training] Reference

A leader must be able to think about her group, organization, system, and herself and be a first-class noticer of internal Strengths and Weaknesses and external.    From Wordnik.com.  [Ms. JD - Changing the Face of the Legal Profession] Reference

More of a bird noticer, don’t really ‘watch’ them.    From Wordnik.com.  [50 things meme « I’m Not Broken] Reference

Call flinched, but Pea Eye didn’t notice—Pea Eye was no noticer, as Augustus had often said.    From Wordnik.com.  [Lonesome Dove] Reference

But that is the first thing to remember: being a good noticer is terribly important in learning animal language. ".    From Wordnik.com.  [The Voyages of Dr. Dolittle] Reference

Utilising Twitter, mobile blogging and GPS, it’s the work of Moblog co-founder Alfie Dennen (in association with Demos, HomeMadeDigital and TED), whose objective is to unlock the urban “noticer” in all of us within a fun, engaging scenario, whilst also raising awareness of the XDRTB campaign started by photographer James Nachtwey which is highlighting the ravages of drug-resistant tuberculosis.    From Wordnik.com.  [October « 2008 « Innovation Cloud] Reference

But listen: are you a good noticer?.    From Wordnik.com.  [The Voyages of Dr. Dolittle] Reference

1999, his nonfictional style isn't much different from his fictional one: in both he is a great noticer, always alert to the odd but telling detail.    From Wordnik.com.  [NYT > Home Page] Reference

"a first-class noticer") makes gold of it - invariably stripping away sentimentality and replacing it with the mix of caustic intelligence and biting wit of someone who feels things deeply but never loses the ability to step back a bit and see the dysfunctional theater of it all. ".    From Wordnik.com.  [Largehearted Boy] Reference

62. noticer.    From Wordnik.com.  [Jason Clarke's meta feed] Reference

"I'm the best noticer you ever saw.    From Wordnik.com.  [When Eight Bells Toll]

Caleb is a noticer, David my rememberer. ".    From Wordnik.com.  [We Remember - Ruth Pulda, 1955 - 2008] Reference