Examples of empathy

Danko appears as a tattoo on Lydia's back, and she says his name.
(Orientation)

Lydia knows Hiro's name and information about him when a tattoo of him appears on her back.
(Orientation)

Claire, Peter, and Sylar appear on Lydia's back.
(Jump, Push, Fall)

Noah appears on Lydia's back, angering Samuel.
(Acceptance)

On Lydia's back, images of Charlie...

...Noah...

...Claire...

...and Sylar form out of ink.
(Once Upon a Time in Texas)

Lydia could feel her boyfriend wanted to run from her and their unborn baby.

Lydia can feel her sister most desires a family. (The Painted Lady)

Hiro touches Lydia, allowing her to feel what he feels.
(Thanksgiving)

Claire touches Lydia, whose back reveals Claire's greatest desire.
(The Fifth Stage)

When Eric Doyle visits Lydia, a marionette tattoo forms on her back.
(The Puppet Master)

Lydia uses her ability to find Arnold...

...but she sees a much older man than she expected.
(Bloodlines, Part 1)

Lydia finds out Danko was the one who took Arnold's son, and she finds out that Arnold's son is dead.
(Bloodlines, Part 2)

Lydia approaches Sylar...

...and seduces him...

...allowing her to recall his memories...

...and experience everything he has experienced...

...but Sylar catches her in the act.
(Let It Bleed)

Whilst at the carnival, Lydia makes...

...a tattoo of the compass appear on Peter's arm, while he is in New York.
(Close to You)

When kissing, Sylar is able to feel Claire's emotions
(Pass/Fail)

Lydia reads Claire's thoughts.
(The Art of Deception)

Almost dying, Samuel kisses her and Lydia feels Samuel's thoughts
(The Art of Deception)