Question: what are the characteristics of effective delivery?
Answer: Articulation.
Dialect.
Posture. Can reflect your credibility. Shows your intensity. Keep your head up and stand up straight. ... 
Pauses.
Physical Appearance. Not only accents your message. Effective timing. Vocalized pauses. ... 
Pitch.
Gestures. Monotone is boring. Your voice has inflection. ... 
Pronunciation.