You burp when you are 'gobbling' down food , at the same time you are swallowing air, not breathing air, that air has to leave the stomach, so after a [very] short period of time it travels up your...
A burp is when you have an ''air bubble'' in your stomach cause from eating fastly or drinking carbonation. It is nothing bad just air coming from your stomach to your mouth. :-)
Stand up--or at least, sit up. Gas goes up. If you're lying down, you're less likely to burp. Drink a heavily carbonated beverage. By swallowing the beverage, you will necessarily introduce gas into...