Tokens are not distributed yet. I think they will be distributed soon. After distribution, You can check your balance on myetherwallet if you know your private key or you have your keystore file. GGS will most probably be added automatically. Otherwise you can add GGS token in '' add custom token'' section using the information below.

Address: 0x68DB10ECC599D9f5E657acDAfDbf6449D658bB2D

Token Symbol: GGS

Decimals: 18