Very rarely with books as I have a ridiculously huge vocabulary. Where I do find myself googling is when reading articles on the web about New Zealand today - I left decades ago and have only been back once, and the language is changing fast. It's almost turning into a creole with added Māori words for concepts about society and interpersonal relationships. I didn't need to know what "hapū", "tamariki" or "taonga" meant back in the 1970s, but I do now.