What on Earth Is That 'Old' Man Thinking?

I can no longer camouflage my aches and pains.
Or hide them behind grimaces...
Through smiles to mask.

There are some tasks,
Aging limbs can not publicly pretend to do.
Like walking with a swagger,
Past a sweet young 'thing'.
Who says within listening distance...
'What on Earth is that 'old' man thinking? '