Tips on how to teach a toddler to talk

My daughter is already 20 months old and she talks very rarely. Yung tipong parang tamad na tamad siya magsalita but overall okay naman po sya. She is healthy, malakas kumain and magdede, hindi naman po sakitin, talagang sa speech lang siya parang mahina. Paano niyo po ine encourage yung mga anak nyo na magsalita? Palagi ko naman po syang kinakausap, kinukwentuhan and all gaya ng mga pinapayo ng iba but still parang ayaw nya ng laging nagsasalita.