[Ballu Miaa]

ShowPlayerDialog List one to the player. First option should be male and second should be female. When they select male. Under OnDialogResponse increment the PlayerInfo[playerid][pGender] = 0; and PlayerInfo[playerid][pGender] = 1; when they select a female. Under OnPlayerDisconnect you might be saving stats of the player. There add this new Pvar and its current value.

On Stats

You will need to create an array which will change string when its 0 or 1 and use it show player gender under ShowStats!