We are all different, weather it's how we're raised, our genetic predispositions, where we come from and what our life road is. However there are some universal rules of socialization that guarantee a smooth and pleasant experience wherever you go. So don't be shy, try them out, and the beauty of human connection will leave you wanting more!
Be positive! Always remember that regardless of what's going on in your life, or weather you're having a bad day, the people around you don't know, and it's unfair to project your negative energy onto them. Stay positive, and your own mood will improve as well as make others like being around you.
Be confident. Now don't go overboard with your great self-esteem displays. Like yourself, because you're unique, talented, intelligent, fun, and just a good person. Simply be, and people will gravitate towards you.
The power of touch. Touching a colleague on a shoulder or touching the back side of someones hand as you shake hands breaks down natural barriers and decreases any perceived distance between you too, making you subconsciously feel closer and more genuine. High fiving is a great way to connect as well. Just don't go overboard with the touching, or you might come across as a creeper.
Be genuine! Truly be happy to meet that new person, imagine all the things you can learn from them, or share. Feel grateful when you meet with your friend, who you haven't seen in a while, because they made time to see you, and are there because they like you and want to be.
Smile. Simply smiling makes you appear happy, easy going, and (subconsciously, not a threat). So do it all the time, it's contagious!
Don't talk about yourself! Oh god this one is very annoying. Narcissism is an instant turn off. It might have been acceptable in middle school or high school (kids are self-centered due to some areas of the brain not being fully developed yet) but once you enter the adult world that's labeled as insecurity, narcissism, and just a selfish unpleasant person. Modesty is the way to go.
Be respectful and listen! People who rudely interfere, and who act distracted or bored are simply unpleasant and not sought after for conversation. Yes the person might be a little boring, or annoying but if they don't realize it, there's no need to make them feel foolish, and devalued. There are ways to escape by politely saying you need to use the restroom, or make an important call.
Loose the power stance. When meeting someone for the first time many tend to look confident, with a straight posture, a firm hand shake, and eye contact. This can come across as threatening or self-important. Try to relax, step forward, tilt your head towards the person (subconscious bow), and humbly shake their hand with a smile. This will make you seem more vulnerable (none-threat), which in turn will spread a relaxed atmosphere all around, and make the meeting, conversation more pleasant.
Obama know's what he's doing.
Be courteous and polite. Say please, thank you, could I, if you don't mind type of words. They make people feel respected and valued.
And finally look put together. Nobody likes a slob. Maintain your hygiene, wear appropriate, well fitting clothes, and groom your face and hair. Simple!