The Traveler's Guide to Aellorah
The Sentiom Sylvareth express more of their Human side, showing less emotion than a Human, but far more than an Elf. They are very sensitive to the emotions of those around them due to a natural ability to passively pick up on the surface emotions of others. They keep this ability concealed, fearing that it would only make their relations with the Elves worse. They have arguably the best relations with Humans of the three Sylvareth variants.
You have the ability to sense the surface emotions of creatures within 30 ft. of you. This ability can pick up on simple emotions, such as anger, disgust, joy, etc. You can delve deeper as an action, allowing you to glean more complex information about the creature's emotional state and desires. The creature must make a Wisdom saving throw with a DC of 8 + your proficiency bonus + your Wisdom modifier. On a failed save, you have advantage on Persuasion, Deception, and Insight checks against them for 1 minute. You can do this a number of times per day equal to half your proficiency bonus (rounded down).