Someone who would wear something similar to the second picture to work (unless they work at Hooters or some such), is begging to be looked at. They dress that way for school too, paired with 'muffin tops' (UGH!) then when they get stared at or maybe even snickered at, they get indignant. One girl actually came to school the last summer I attended, wearing a white strapless flowy cotton thing that her boobs showed through! Even guys were snickering at that one.
I'm not big, but I am 'full', so cleavage is kind of high-blouses with the first two buttons undone would show plenty on me, so I tend to look buttoned up at times by leaving just the collar opened. I have one blouse that has a slight V-neck and it shows cleavage on me-had I worn it to work maybe one time before I wore it the day I got my review, I might still have that job!
For no cleavage: definitely if you work in a school, any high-end profession where you want to be taken seriously and funerals.
Some: Waitressing, casual dress type atmosphere in the workplace
Go for it: Any place else
