When we ask how we can share our faith with others, we know that friends and co-workers loose loved ones, we see the obituaries and find out their names and the dates they passed, why not remember them on the anniversary of their passing? It’s a very Catholic thing to do, and when we comment to that person that we remember their loved one today, 1 year later, often they are very touched by the kindness.
Maybe they don’t want to hear we’re praying for them. Unbelievers don’t really like to be told that. BUT to remember a loved one, that they are not forgotten, is something I think most people would appreciate. Maybe if we aren’t the best of friends, that can smooth over some of hard feelings, some remembered past hurts.