I would hope the Purser or #1 would be doing periodic checks to see if coffee, food or leg stretch might be wanted. This should be discussed in the crew briefing. Captain and flight deck crew should be doing group briefings with cabin crew so everyone gets to meet and have a common strategy in place for the trip. It’s easy to get complacent and a proper crew preflight briefing is important to safety. Even just 5-7 minutes can solve issues before they start.