I watched GFII tonight. have watched this scene a million times, but just noticed.

When Michael returns from Cuba and tells Rocco and Neri to wait outside, Rocco leaves, but Neri turns his back to Michael, waits, then finally leaves. However, he exits, then closes the sliding door, but waits there for many seconds looking inside. I took that as his demonstrating his dissatisfaction with being excluded. Did any of you see that and interpret it such?

Also, at the nightclub when Geary et al are hosted by Fredo, I wonder if Michael wondered why Fredo already knew about the local drinks since he had only been in Cuba for a day and supposedly had never been to Cuba before.