HoO
Believe it or not, bosses notice things like a employee doing above average work, finishing jobs before they have to, showing up on time, getting along with other employees (expecially if the other employees are butt holes) and other above average stuff.
They might not say it or hand out a bunch "atta boy's" but they will keep it in mind the next time a raise or a step up in job level is available.
They also remember the guy who only does the minimum required, walks around with a chip on his shoulder, comes in to work late, isn't willing to help others...
They might not say anything to that person but you can bet he/she isn't going to get raises or any job opportunities offered to them.
Oh. They probably will get moved to first place but that's not necessarily good.
It's in the, "Who's the first person I want to fire" category.