If the item can't be coughed out and the patient is conscious preform back blows and if they are unconscious preform chest compression;
Lean the person over while putting your arm over them to prevent them from falling then aim right above the shoulder blades and start preforming blows to that area and repeat until the blockage area is
Abdominal thrust have a person stand up straight step behind them put your hands right below the ribcage
if the person goes unconscious while choking and loes pulse start preforming chest compression