best to use reflexive verb?

[alan gould]

I saw "It's hardly noticeable, you can barely see it" translated as 

"Ça s'aperçoit à peine."   I looked for it elsewhere and found "c’est à peine évident."   I would say "on le voit à peine."  Would that be awkward?  i believe the french prefer to use a reflexive verb in this case and that I have to try to approach a sentence that way.  

Merci, d'avance.  

 

[Vedas]

Hello,

rather than "ça s'aperçoit à peine"   one would say more naturally "ça se voit à peine" 

"on le voit à peine" is good too.

 Both can be used irrespective of context.

[Florian Chanonat]

I want to say something about the word "ça".

You can use it when you want but don't use it if you're talking to an important person (looking for a job for example). Use the word "cela".