Don't know how to do this

for in loops are pretty handy if you get how they work. the syntax is following: inside the brackets you want to tell the compiler that you need it to make some operations with each object inside the array. so you say

for(NSString *drink in drinks) {
    //here make your operations
}

you need to create an nsstring variable like you normally do with the syntax "NSString* drink". it's just a placeholder variable that represents each object of the array. it's like plain english. nothing hard to remember. it reads like "for drink in drinks make some operations" or in more natural english "create a temporary variable named 'drink' that represents each object of the 'drinks' array and for each object inside it compile following line of code {NSLog(@"%@", drink)}" this is your solution:

NSArray *drinks = @[@"juice", @"water", @"coffee"];
for(NSString *drink in drinks) {
  NSLog(@"%@", drink);
}

and my suggestion, don't leave treehouse. if you are truly eager to learn just try to get knowledge from every place it is possible. if you're stuck google, ask, check out apple documentation, stack overflow. it's hard in the beginning but you'll learn to research and find answers. just keep your chin up and everything will become possible in time. treehouse actually is a great place for beginners. always write code synchronously with teacher. if you don't get how to complete code challenge it is not a disaster. just review your code, have a rest, then rewatch the video. you'll probably find the solution. even if it is a complete dead end, as I've already said, there are always google and stack overflow online full of questions and answers.