be carbon neutral,
dont give her a present, absolutely everything will have a direct or indirect carbon footprint no matter how small,
dont visit her either,
if you walk an amount of shoe material will wear away and need replacing earlier,
if you go barefoot you must choose not to use water (a valuable resource) to clean up,
dont call her there is electricity involved which has a fossil fuel footprint or even worse nuclear,
you can shout a greeting as loud as you can,
happy birthday saddo!