1.Nh3 h6

Among white's best moves, 2.Nc3, 2.e3 and 2.e4.

White can also try:

2.d4 e6,

2.Nf4 d5 3.e3,

2.Na3 e6 3.e4 Qf6 4.Qf3 Qf4 5.d4 Nf6.