Three Knights Opening

This opening is the one played very often. Black avoids drawish 4 knights game playing 3…Be7.
This opening is not very well known and analyzed, so it may be a good idea to play it, if you want to surprise your opponent. Psychology is big part of chess.

1. e4 e5 2. Nf3 Nc6 3. Nc3 Be7 4. Bc4