I think there are different cultures of this. Some want you to simply grieve with them, and some feel it's inattentive to ignore the problem. People often act

I think there are different cultures of this. Some want you to simply grieve with them, and some feel it's inattentive to ignore the problem. People often act what's appropriate to their culture, which is a faux pas to the other culture. So you should probably be really careful and spot what the person needs. But listening and nodding is often the safer route.