Here's a new idea, borrowed from another community. Let's have a pinned thread for birthdays each month. Tell us here when your birthday is in March. Then other members can send you good wishes in this thread.
How to "tag" somebody so they know you have given them a mention? Put an @ sign before their user name and a box will open with their name for you to click on.
Let's try for a couple of months and see how it goes.
Happy birthday to all our March babies!