Claire Keegan’s superb novella Foster, expanded from a short story published in the New Yorker in 2010, has an idiom I remember hearing in childhood and only seldom since. The book’s narrator is a young girl in an unfamiliar place, accompanied here by a woman, Mrs Kinsella, with whom she is staying temporarily:
Out in the street, the sun feels strong again, blinding. Some part of me wishes it would go away, that it would cloud over so I could see properly. We meet people the woman knows. Some of these people stare at me and ask who I am. One of them has a new baby in a pushchair. Mrs Kinsella bends down and coos and he slobbers a little and starts to cry.
‘He’s making strange,’ the mother says. ‘Pay no heed.’
The verb phrase make strange means to act up or be nervous or shy, etc., when encountering a stranger or strange situation. It’s normally said of babies or small children, but not always.
Like many expressions characteristic of Hiberno-English it seems to have been loaned from Irish, where coimhthíos a dhéanamh le duine literally means ‘to make strangeness with someone’, or to be shy or aloof in their presence; coimhthíos means strangeness, shyness, aloofness or alienation.
Another phrase, bheith deoranta le duine, means essentially the same thing with a different verb (be rather than make) and, said of adults, can also mean to be distant with someone.
John Banville, in The Untouchable, points to a sinister origin in folklore: