That's Not All About Me

I write and I speak,
I speak and I write,
but that's not all about me.
I walk and I run, 
I run and I walk,
but that's not all about me.
I learn and I type, 
I type and I learn,
but that's not all about me.
I sit and I think,
I think and I sit,
but that's not all about me.
I write, speak, walk, run,
learn, type, sit, and I think,
but that's not all about me.
However, that's all you need to know,
you don't need to know about me.