HYPNorwegianSSN *ssn = [[HYPNorwegianSSN alloc] initWithString:@"xxxxxxxxxxx"];

if (ssn.isValid) {
    NSLog(@"Yeap, this is valid alright, tell me more about this so called person.");
    [self gainInterest:YES];
}

// Or the shorthand version

if ([HYPNorwegianSSN validateWithString:@"xxxxxxxxxxx"]) {
    NSLog(@"Yeap, this is valid alright, tell me more about this so called person.");
}

if (ssn.isDNumber) {
    NSLog(@"OMG! A potential swede");
    [self runAndHide];
}

if (ssn.isFemale) {
    NSLog(@"Oh, it's a woman!");
    [self comesBack];
}

NSLog(@"Are you sure? Remember what happened last time?");

if (!ssn.isMale) {
    NSLog(@"Yeah I'm sure, this is not an Aerosmith song!");
    [self startWhistlingOnTune:@"Aerosmith -  Dude (looks like a lady)"];
    NSLog(@"Doh!");
}

if (ssn.age >= 18 && ssn.age < 35) {
    NSLog(@"Dear diary, jackpot");
    [self enableTheSmoulder:YES];
}