What are they doing?
"It's called flirting."
They seem to be communicating telepathically.
"They're thinking the same thing, if that's what you mean."
Guinan, is the joining of hands a symbolic act for humans?
"It shows affection. Humans like to touch each other. They start with the
hands, and go from there."
He's biting that female!
"No, he's not biting her. They're pressing lips together, it's called
kissing."
Why are they leaving?
"Lal, there are some things your father's just going to have to explain
to you when he thinks you're ready."
-- Lal and Guinan, "The Offspring", stardate 43657.0