telltale

名词 telltale:

1. someone who gossips indiscreetly
   同义词：tattletale, tattler, taleteller, talebearer, blabbermouth

形容词 telltale:

1. disclosing unintentionally
   同义词：revealing, telling

1. I can see from the telltale look in her eyes that she love him.
   我从她那无法掩饰的眼神里可以看出她爱他。