Which preposition to use with squar

in Occurrences 1%

one night arter some ob our pore people had been killed, an' some ob our women had run'd away 'bout seventeen miles, my gran'son, looking me squar in de face, said: 'Ain't you got five fingers?

with Occurrences 1%

"We're squar with 'em.

Which preposition to use with  squar