yes i fell pray to d6 once lost i have a few puzzles of it in a group i run called THE BEGINNERS TEAM i encourage all to join

The most common move here (and also my favorite) is the very sensible 2...Nc6, defending the pawn and allowing White to choose between the Spanish (3.Bb5), Italian (3.Bc4), Scotch (3.d4), and a few other openings.

2...d6, the Philidor Defense, is fine but not as combative.

2...Bd6? is a bad move, positionally speaking.  It wastes time by needlessly blocking the central d-pawn from advancing and preventing the bishop from taking up a more favorable position (like c5 or b4) if the opportunity arises.

2...Nf6 (the Petrov Defense) is a fine move, if decidedly drawish in higher-level play.  White normally continues by gobbling the undefended pawn with 3.Nxe5, but Black is fine after forcing the knight to retreat with 3...d6.  3...Nxe4? is a blunder, allowing 4.Qe2 with a strong positional or material advantage if Black plays accurately (http://en.wikipedia.org/wiki/Petrov_Defense#3 ._Nxe5).  After 3...d6 the knight must retreat, and Black can safely grab the pawn then.

Whatever you do, don't play 2...f6?  This enters the Damiano Defense and it's a painful blunder.  3.Nxe5! fxe5 4.Qh5+ is devastating.  Getting out in one piece is not an option for Black unless his opponent falters; common alternatives to being mated include losing the king's rook and losing an assortment of pawns.

nf6?

nc6 or nf6 is what i play

Ps its blacks move ignore the white to move on the diagram