Speaking at a loud voice with excitement.

Drooby eyes and a frown on your face.

Speaking at a low volume whereby a person can barely hear you.

Bright eyes and mouth in a upward banana shape.

Speaking at a loud volume with panic in your voice.

Squinty eyes, frown on your face and mouth tightly close.

Speaking words to a melody.

Squinty eyes, mouth and hands tightly close.

Speaking without clarity?

Eyes are bright and a big smile on your face.