Do not just mechanically say ‘Good Morning’ to your friends, colleagues, and family members. That is just another way to say ‘hello’ to someone randomly.
Instead, say ‘(I am wishing you) a very good morning and a pleasant day‘.
If you want to extend it then add ‘I am with you to make your day successful’.
If you want to extend it even more then add ‘Let me know if I can do something for you today’.