peek, peep / be on the lookout / infer, gather

a curtain (both literal, as in a window covering: “open the curtains to let in the light”, and figurative, as in a barrier: “the Iron Curtain”)

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

(the) outside

外, 他: other, the rest

Bamboo Curtain

a green wall (a wall covered by greenery)

緑のカーテン: a green wall (a wall covered by greenery)