Positive:
* Loquacious: This implies a fluency and ease with language.
* Voluble: This describes someone who speaks easily and readily.
* Articulate: This suggests a clear and fluent communication style.
* Chatty: This is a more informal and friendly term.
* Garrulous: This can be used in a positive way to describe someone who is lively and engaging in conversation.
Neutral:
* Communicative: This simply means someone who is willing and able to talk.
* Conversational: This describes someone who enjoys talking and interacting with others.
Negative:
* Rambling: This suggests someone who talks a lot but doesn't always make sense.
* Verbose: This describes someone who uses more words than necessary.
* Gabby: This is a more informal term for someone who talks a lot, often about nothing important.
* Motormouth: This is a negative term for someone who talks incessantly.
The best euphemism for you will depend on the specific context and the tone you want to convey.