Here's what I do when someone tries to copy my moves:
[Date "????.??.??"]
[Result "*"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nxe4 4.Qe2 Qe7 5.Qxe4 d6
*
But then my opponent plays d6, and I don't know what should I do. What's the best continuation for white after d6?