Pensating
To pensate, or think, especially hard about one topic in particular.
"Her face is really scrunched up"
"She must be pensating."
"She must be pensating."
pensate
a word made up to impress people with your deep thoughts and overburdened cranial use.
Sorry my brain is fried due to the Global-Economic, socio-political environments I am forced to currently pensate upon.