The color and surfaces. A cent in that grade level should be a darker brown, usually. This one is too unnaturally orange, and the surfaces are flat looking yet overly shiny. These are a sure sign of cleaning/polishing. It's hard to describe, and learning to spot cleaned coins does take some time, but once you've become accustomed to it, they usually stick out like the proverbial sore thumb.
The color is a indicator it was cleaned and if you look at the small crevices, like inside the mint mark, you'll see they are dark! It's hard to clean those areas because they are so small! Would like to see a closer pic to see if there are any scratches on the surface!
I'm not sure the coin was cleaned. Dark copper can look like these images. Different lighting and contrast can give many different looks.
Indeed, photo lighting can be very misleading, if unintentionally, so it's hard to see the true color, and it could easily be more brown in person. Better to take without flash or direct/intense light...most cams today do just fine in a more natural, indirect but adequate light (not too indirect or shadowy). And with today's digitals, you can always review before posting, and retake as needed. Take straight-on/over, at 90-degrees...not at/from an angle. That said, agree it likely has some cleaning in its past, and maybe more than once...with "cleaning" running the gamut of rubbing between fingers to harsh chemicals/scrubbing. On the latter, cannot see/detect any fine scratches/hairlines as is, without mag, but also don't detect any harsher evidence that would likely be apparent in these photos. Most generally...understand there may be certain/few exceptions...that age/condition of copper will indeed be a dark(er) brown than this appears in the photo. On better circulated examples there can even still be traces of red, if sparse/faint, usually in/around lettering and rims.
I have a comment. More of a question, really. Why would you post hazy pictures of a common date LWC to post titled “Any Comments?” and then include no details about what you think you may be seeing - even when asked?