In general, a company wants to get the most out of you without having to put a lot into you. It's not as bad as it sounds-- they just want to maintain or increase their viability. If you could somehow educate yourself about their production, and how you could contribute to it, in a way that does not interfere, or only minimally interferes, with those who are actually making it happen, you would be making progress in the right direction.
As a young person, or young worker, you should show respect for those who have been successfully working awhile. Such people may not have a lot of tolerance for listening to the self-promotion of the new employee, especially if they have little or no work experience. They just want to see you contribute to the work process more than they have to contribute to you to get you up to speed. That is how a new employee should "promote" themselves-- not by talk, but by successful actions that contribute to the work process. As a person from an oriental culture, this will probably be easier for you than if you were from some other cultures. If you actually have some sort of production that went in the direction of the type of work you would be doing that you could "show" rather than just "tell" in the interview, it would put you in a better light, but I would first ask if they wanted to take the time to see it before I brought it out.

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Are you a sophomore in high school? Are you a sophomore in college? I will assume you are a college sophomore. 

My work experience has mostly been in work areas where objective results were what was wanted, so any advice I would give would be biased in that direction, but still would be generally true in other areas, I think. I have worked in companies that have different levels of "overhead". You mentioned a "large organization", so they will probably have more overhead, and so more extra "beans" to spend on training a new employee or intern up to the point where they can be productive, then supervising them and possibly correcting them after that point. That is good for your chances of being hired, but regardless of the level of overhead a company has, it is always a good idea to focus on the viability of the work process that you would be involved with from the viewpoint of whatever work role you would assume.

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As a young worker, you should also have respect for the work process that is making the viability of the company happen. So don't even think about changing anything until you have operated in the current process in a viable way for awhile so that you can gain good perspective about it. Even then, be very conservative about the idea of changing anything. Other people have been around for awhile. If there were a good reason to change, why haven't they done so? (There can still be valid reasons for change).
There is another thing that you might consider, though it might work better in a smaller company with less overhead, and so more attention on the work process. In the USA today, and probably a lot of european companies too, I guess, there is sometimes an idea going around that social media should be incorporated into the work place, and that making everything "personal" somehow makes the group function better. This is actually a false idea, and cuts across the viability of the work process, but you may have to be careful to not step on the toes of those who do subscribe to it so as not to alienate those who have authority or responsibility in the company. If you were in Germany, I do not think it would be an issue. They are more likely to subscribe to the idea that the viewpoint of the work role is the appropriate one to use in interfacing with your fellow workers-- not your personal viewpoint.
I guess a lot of this advice has been towards someone who has already been hired, but you could probably use it to get an idea of what a prospective employer would like to see you become, and possibly get an idea of how you could move in that direction.