How to Trick Yourself Into Being Confident

People don't cannot see your fear and with you the idea of faking to make it is that if you walk into a party and you smile and you pretend to be confident this is why when your mother told you just be yourself that's wrong advice. The hard part is like how do you figure out you're in the party you don't know anyone how do you know which person or group is receptive to you mingling with them because I think that's the thing that just you end up just having your hands in your pocket or holding the right a drink and a no-door of clay  is what do you do? You can also use the food and the bar if you it