Question

please reply my answer if you don't know also but please don't command

Answer 1

You can write anything, sometimes you might even advise your mom on usage of phones and modern gadgets. Write the dialogue highlighting what your grandparents would say, they would chuckle when you're explaining it to them because in their times there were barely telephones. You can give it a basic beginning like start off with

You- Hey grandma! What are you doing?

Grandma- I'm trying to click a picture of that cute little cat but this camera doesn't even work!

You- Oh grandma, let me show you how to do it.

Grandma- Why don't you do it for me?

You- I am not staying forever, and I'm sure if you learn it once you can avail a lot of benefit from it!

etc etc

I'm sure you're smart enough to do this one by yourself!

Good luck