[Mean]

For gender:
Anywhere, like in a command or something

pawn Код:

ShowPlayerDialog( playerid, 0, DIALOG_STYLE_LIST, "Are you a male or female?", "Male\nFemale, "Choose", "" )

Later...

pawn Код:

new gender[ MAX_PLAYERS ];
public OnDialogResponse( playerid, dialogid, response, listitem, inputtext[ ] )
{
    if( dialogid == 0 )
    {
        if( response )
        {
            switch( listitem )
            {
                case 0: gender[ playerid ] = 1; // 1 is male, 2 is female
                case 1: gender[ playerid ] = 2; 
            }
        }
    }
    return false;
}

pawn Код:

public OnPlayerConnect( playerid )
{
    gender[ playerid ] = 0; 
    return 1;
}

pawn Код:

public OnPlayerDisconnect( playerid, reason )
{
    gender[ playerid ] = 0;
    return 1;
}

I am actually suprised you don't know that.

And a command to see your gender

pawn Код:

CMD:mygender( playerid, params[ ] ) 
{
    if( gender[ playerid ] == 1 )
        SendClientMessage( playerid, 0xAAAAAA, "Your gender is male" );
    else if( gender[ playerid ] == 2 )
        SendClientMessage( playerid, 0xAAAAAA, "Your gender is female" );
    return 1;
}