Try to learn someone's opinions and intentions
(Verb)
Synonyms:
  1. feel out
  2. probe
  3. sound
  4. feel
  5. put out a feeler
  6. send up a trial balloon
  7. pronounce
  8. check out
  9. run it up the flag pole
  10. see-how-the-land-lies
  11. get the lay of the land
  12. articulate
  13. see which way the wind blows
  14. enounce
  15. enunciate
  16. say

Sound-out Is Also Mentioned In