I work for a major English airline, and our SOPs call for the cabin crew to make contact or come in to the "office" every 15/20 minutes. Not only is it good for CRM but it also keeps one on one's toes. All my friends who fly for the bigger Uk airlines have a similar policy. I guess it hasn't caught on with our junior colleagues on the other side of the pond yet. Maybe when we are as good as our American friends we can try to do it on our own as well.