Yep I know your 15. I will ask steveO to change it when I talk to him.
I dont think its age as much as it is experience.
Few things to remember…
Test them out one by one and look for anything out of the ordinary. Reactions will differ in your age group.
So you went over to your friends house and didnt notice anything. Girls or boys ??? Keep in mind they know you and have preconceived notions as to who you are. It could take more time with those close to us.
Now try really hard to set and forget it and look back at your day later when you get home. Remember all hits are not blatant. You have to make a effort to be open to people reactions to. Lets say your wearing Instant Openness and people around you start talking more. Join in. Remember the product makes them chatty but it dosnt tell them what to say.
So it may seem like they are saying something fairly normal but sometimes they are just trying to get something started…Example
Hey did you get the homework assignment from Mr SHakaka’s class. This may seem like a a normal school type question not really caused by IO.
You Say sure here and then close off. They may feel chatty but you dont look open to chatting
Or say sure I have it, Mr shakaka is such a dick head isnt he ??? . This is when your IO will start to kick in most times. They have been standing near you for a few minutes and it has time to register and your open to conversation. Asking a question is important. Now you may say well thats me not the IO. You may have started them talking but the IO will help keep them talking and make it easier for both of you.
Looking for cues, Girls and guys in your age group havnt mastered the cues yet. Excessive giggling means they like you. Turning her back to you the minute she sees you walking by is a cue example…
Suppose your walking down the hall and there are two girls you think may have a interest in you standing down at the end of the hall. We travel in packs 
The one who rapidly turns her back to you is the one who likes you. She is in the process of saying to her friend
Oh my Gawd, here he comes, he is so cute, is he looking at me, what is he doing, is he still coming, dont look right at him. Oh my gawd I am gonna die.
Then as you pass. She will give you a slight glance. You Walk right by and smile and wink. Suppose they just say HI Assetttt. At your age hun thats a hit. Her and her friend then go into a new tirad after you pass of …
Oh I think he likes you, do you think he likes me, he is so cute, he looked at me. Then she go’s home and writes your name like 2000 times on the inside cover of her notebook with little hearts around it. Calls her friend and asks her to find out if asset likes me in school tomorrow. LOL This is going on every day in high schools all across the country.
Point of my story is be observant. While your busy checking out the hot cheerleader with the short skirt there are other girls out there checking you out. Look for the cues. The giggle, the quick glance, the back turn when with there friends, The long drawn out Hiiii Asssettt. At around 15 girls still get effected by pheromones but they wont always react to it like you read the older women do here in the forum. They just dont have the experience yet. Does this mean you shouldnt use pheromones till your older. Not necessarily.
Just so you know, I have a big box up in my attic with a few notebooks from high school in them. They have little hearts and my husbands name written a million times. At 15 he didnt know I was alive even though we hung around with the same people.
Keep working with your pheromones and I guanantee your name is going to be inside quite a few nootbooks
Tisha
Dont panic I am not robbing any cradles just yet LOL