The `o’ in the first syllable and the `iou’ in the final syllable are pronounced like the `a’ in `china’. The `qu’ sounds like the `qu’ in `quit’, `quiz’ and `queen’. The `a’ that follows is like the `a’ in `way’, `say’, and `bay’, and the `c’ is like the `sh’ in `sheep’, `ship’, and `sheet’. The stress is on the second syllable.
When you say that someone is `loquacious’, what you mean is that the individual talks a lot. The word is mostly used in formal contexts.
*The normally loquacious Malar chose to remain silent at the meeting.