If you want to be smart, you need to be knowledgeable about something. Some people are interested in, and study, everything. Unless such a person is lucky enough to be a genius, he or she will likely become a jack of all trades. In other words, he or she will know a little about a lot of things, but will not be an expert on anything. On the other hand, some people are obsessed with one subject and never give a thought to anything else. This is unfortunate because there are a lot of very important subjects out their.
You need to find a happy medium. You should make sure that you know at least the basics of math, science, literature, and history. You should also pick a couple of subjects that you want to study in depth. This way, you will never appear ignorant, regardless of what topic is being discussed. You will also develop a reputation among your friends as being an excellent source of information about whatever you have chosen to focus on. Basically, you will seem smart.
Believe in Yourself
If you label yourself as stupid, no one will argue with you. But if you act intelligent, people will assume that you are. Now, this does not mean that you should go around claiming to be smarter than everyone else; this will only make you seem arrogant, annoying, and rather stupid. Just don’t put yourself down, either.
If you are faced with a difficult task and you are not sure that your brain is up to the challenge, try your best anyway. You might surprise yourself. Even if you do not succeed, you are still exercising your mind; you might be better prepared for the next challenge.