flat, unchanged / expressionless, blank

being flat, unchanged / blankly, without expression

flat, even, level, smooth, having no variation in altitude / stable, calm, at peace / relaxed, lacking formality

flatness

expression (facial, bodily, etc.)

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

face / expression

a person's face / a person's reputation