thinking if he blinked too many times that he would miss Christmas.

won't miss it, he's sure.

did not figure that Christmas would be important to such a stiff looking guy.

does think Christmas is important! And he isn't all that stiff.

could not be entirely sure. But he should go set up the Christmas decorations.

he's rather laid back, actually. And he will hang them. He just has to dig them out.

thinking that was being lazy.

isn't very lazy. Or rather, he tries not to be. At any rate, he decided he will start to decorate.