I know you already knew the difference between the two terms, but I do believe that:

expecting = knowing that something's going to happen.
anticipating = hoping or guessing that something's going to happen.

It's like, you are expecting someone to come to your house (knowing that something's going to happen); and you are anticipating that his next move on the chess board is going to be that move (hoping or guessing that something's going to happen).

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[Valice.Net] [Click to save humanity] [ZU Psychologist] 6,000th post - 2007/02/03