“A cheerful look” is literally “light or bright eyes.” Apparently nonverbal, this communication from one person brings a joyful heart to another. In the same vein, good news – no doubt the spoken word in antiquity – from one person can help bring health (“healthy bones”) to another.
“Healthy bones” is literally “fat bones.” Of course, the focus is not on one’s actual bones but on their weight. In the ancient world, to be fat (overweight) was to be wealthy (and, by extension, healthy, too), because only the wealthy had that much food to eat.
Even today in Jordan, where I excavate every year, the general rule among men is that only the wealthy or important tend to be overweight. Established men of means and influence – who also tend to be at least a bit on the heavy side – are considered healthy and successful. I have had more than one Jordanian man pat my stomach and suggest I must be a very successful man!