When the Marines are waking up you get this dialogue between Hudson and Apone:
Hudson: Man, this floor is freezing.
Apone: What do you want me to do, fetch your slippers for you?
Hudson: Gee, would you sir? I'd like that.
[Apone pulls down the skin under his left eye with middle finger]
Apone: Look into my eye.
What does the "Look into my eye" mean/suggest??