Blue smoke is oil, how many miles you got? How long was it sitting?
Might just be the PCV valve possibly, or oil might have slowly dripped into the cylinders through bad valve seals.
I'd suggest starting with a good 20 minute drive, then see what it does the next morning. If it does it again, then do a compression test.
My oil line fix
My 100k stopped odometer fix
Brace for impact, I'm in a "modifying mood". Massive thread count inbound.