On Monday, July 1st the FAs recognized my birthday on both my very short (approximately 40-minute) connection flight to EWR, and again on my much longer international flight that evening (EWR to Europe). The latter flight was almost comical in that I think EVERY FA in Polaris mentioned it separately, and one of them joked about bringing me some cake later with a candle.
It was appreciated, but they made such a big deal out of it that I was actually wondering whether they were going to bring me a cake and start singing (they did not, thankfully). They did, unprompted, give me an extra amenity kit so that I had one to offer to each of my kids upon arrival.