It won't be long before you start saying "Back in my day..." XD
Happy birthday comrade
Well Happy birthday.
Everyone gonna be too old!
Happy birthday, old man. I got a gift for you.
Enjoy your day, don't forget to enjoy your gifts of prune juice and denture cream. XD
You'ee getting old huh? Should i call you Old Man now?
Happy birthday, my good man. I'll make sure to give you a gift ASAP.