We should have a flowerbed on the balcony. [ Which is more of a muttered groan than anything else, but the device might pick it up...

He heads outside to scan the side of the building. Looking to see if she had somehow navigated herway some place in sight. ]

Looking around outside now; I do not see her. Do you suppose someone in the building might have let her into their flat? Surely someone would think she belongs to someone.