Boosting your self-confidence doesn't happen overnight. It takes a lot of practice, getting comfortable with rejections, being self-assured and mostly doing the right things that you feel good about. For a shy person, this isn't an easy task, it could take weeks or months to get into the habit of feeling confident about yourself, that's if you even try. Sadly, most people with low self-esteem wouldn't even try at all because of fear.
Good thing that there is a way to start building your self-confidence now. It doesn't take up much of your time nor should you fear any kind of rejection, you could literally do this right now and when you get into the habit of doing it daily, you're going to feel more confident than ever.
1. Stand tall
Fix your posture by rolling your shoulders back and down, pushing your chest out. Make sure your head is in line with your spine instead of forward like a rooster. Not only does this make you seem taller, you also portray a more confident and powerful image; Interestingly, it makes you feel one too.
2. Speak louder
When your voice is unheard, it feels as if you're powerless and no one listens to what you have to say. Easy fix, speak louder. Try to use more diaphragm than larynx when speaking, singers do this when singing a song, it gives them more power with their voice.
3. Speak with conviction
Comes with No. 2, when you speak, you have to be sure about what you said. Never in doubt, otherwise you come off as incompetent and uncertain. Speaking with conviction means that every word that comes out of your mouth, whether an opinion, truth or unproven, you firmly believe without a doubt that what you said was right.
4. Don't be sorry
Sometimes you'll be wrong, whether it was under circumstances or you have to apologize for a mistake. You need to stand firm with what you've said and done instead of sorry. What do I mean by this?
During a party, a friend of mine thought this guy who was talking to her was cute. The next day, this same guy apologizes to her and says "sorry about the things I said last night, I was high." That ultimately ruined his chances with this cute girl. Just like No. 3, when you say it, you have to mean it.
5. Walk as if you're the sexiest thing on Earth
Pick the sexiest song you like, put your headphones on and play it while walking. Notice that your stride is going to be a little different than usual, it gives you a little bit more swagger as you walk through the rhythm. Later on, even without music, you'll be carrying this swagger with you.