My son is 2 yr 10 months old & he is not properly talking. He speaks only single words. Can you suggest me what should I do?

talk to him again n again..teach him dfrnt words n sentenses..giv time to him in day to day conversation..appreciate him..giv him some prize if he follows u right..speaks d way u speak words..increase his vocab day by day..giv stress on each n evry word..ds will motivate him to try more..