After you take your shot, and the thumbnail appears in the back-side display, repeatedly press the down arrow of your "navigation wheel". This will cycle thru a number of display modes. One is a histogram which I use to see immediately about what the exposure is going to "look like". Another is a "highlights" screen; you see blinkies if there are any places with blown highlights. The screens following that will contain one or two showing most of the Exif info which will include, shutter speed, f-stop, and ISO
If you don't yet know how to use the in-camera display, look in the Nikon manual index for Electronic Analog Exposure Display. Nikon never makes it easy, manuals are not that user friendly, you may find that reference in the index as a sub-heading under "Manual" under "Exposure" (that's where it is in the D80 manual). Even after you find it you may be confused (I sure was) because it isn't written very well.
Play with it for a while and you will eventually get the hang of it. It is really a great feature and avoids a lot of problems after you get comfortable with it.
Rusty
If you don't yet know how to use the in-camera display, look in the Nikon manual index for Electronic Analog Exposure Display. Nikon never makes it easy, manuals are not that user friendly, you may find that reference in the index as a sub-heading under "Manual" under "Exposure" (that's where it is in the D80 manual). Even after you find it you may be confused (I sure was) because it isn't written very well.
Play with it for a while and you will eventually get the hang of it. It is really a great feature and avoids a lot of problems after you get comfortable with it.
Rusty