It's less common for the associate to greet me in addition to making eye contact, but it happens sometimes. I try to stand directly within or near the associate's line-of-vision, if possible. I'm guessing if the associate greets you, it's considered extra points, maybe not necessarily negative points, for not greeting.
Depending on the time of day, the associate may not be there. The produce department can already be fully stocked. The bakery/deli and meat departments are usually not busy for the Kroger locations I visit. The only time I saw a bakery/deli busy was at a local competitor store that is not shopped. In my area, Kroger is more of a store to visit when purchasing items on sale for the week.