S.E.E

I've learnt these long ago, while I was still in the Food & Beverage Service Line. 
SMILE
ENTHUSIASM
EYE CONTACT

Smile. 
The best way to shorten the distance between two hearts is a truthful smile. 
Being caught up in your own immediate reality, really caused you to neglect your own expression. 
We often forget to smile, simply because there are just too much on our mind. 
However, precisely the reason why it is so important to do what most people forget to do, a sincere smile breaks the ice between 2 strangers. 

Enthusiasm
Most of the time, enthusiasm is being underrated. It is so fundamental that we failed to see the importance of it. It's in everything that we do. Our actions and our body language, our tone when we speaks, it helps to emphasize and convey clearly our message to the other party. It also gives us a sense of security as it helps to maintain our passion towards the things we do. 

Eye Contact
Eye Contact shows others what kind of person we are, it denotes our sincerity and confidence when we speak. Someone who keeps avoiding eye contact during a conversation, almost always give the impression of being secretive and shifty, as though there's something up their sleeves, when in fact, it could just be that this person is nervous around the company, or the ongoing topics. And honestly, it takes practice to be able to look at everyone and anyone in the eyes during a conversation, because, I believe, no matter how outspoken you are, there are bound to be someone who intimidates you, and you'll get cold feet if you were to carry out a normal conversation with this person.