There are few questions in CrossFit where no is a good answer.
Yes is almost always better.
Are you going to class today? Shall we throw a few more pounds on the bar? One more WOD? Wanna learn a new skill today? Is your beast mode on? Having fun? Did you foam roll? Can you do it? Shall we PR today? Do wall balls suck? Are you awesome?
Fo shizzle ma nizzle.