A Killer to Tounge-tied at A Party?

Tounge-tied at a party has almost happened to anyone specially when you come to a new environtment. Anyone sometimes loose an idea to talk about with another comer.
Most of us feel ashamed and nervous about. This happen because we are not common to such condition.
Actually it is cause by a primary reason. A very low self confident.
What happen in the party? Many people come pass by you. They smile and charming. Try to talk with you. But you stil don't have a idea. The situation to be
freeze. And the conversation on a side. It is really not a nice place to be. You want the party as soon as finished and you can go home.
Ok, it is never mind. There is Killer to such king of Tounge-tied?
Yeas, a really simple. You always see this in the party and conducted by other.
What is it?
First, Do smile. I asked you, what do you feel when another give a smile to you? Do you feel nice or vice versa? I am sure you feel nice and make you familiar to other. You like to know better to him. And realize that another one will feel the same if you smile to them.
Second, Do welcome anyone and introduce yourself. And also I ask you what do you feel if you are grated by other. Do feel nice and better familiar and futhere you want to talk with them. I am sure yes. Do it so other will have the same feeling.
Third, Shake their hand. Shaking a hand will give confident to other to make a conversation with you. And you also will feel the great confident if you hake a hand. And then the conversation will continue to better idea and will never fly you to bad place in a party.
Just try and good luck.