1.   He gave her a penetrating stare.

2.   She responds to questions about her personal life with silence, penetrating stares, blank looks.

3.   Marulanda, they say, is shy but an excellent listener with a penetrating stare.

4.   With his chiseled jaw, furrowed brow and penetrating stare, Gabriel Byrne is the kind of actor who inspires sighs or envy, depending on your gender.