Answer: blankstare

AnswerCrossword Clue
BLANKSTARE

Sign of no recognition

BLANKSTARE

Incomprehension indication

BLANKSTARE

It might prompt a "Get it?"

BLANKSTARE
Uncomprehending response
BLANKSTARE
Hardly a sign of intelligence
BLANKSTARESign of an absent mind
BLANKSTAREGlassy-eyed look