At the hug, she says "Sorry, we've only just met." And removes herself from it if it lingers. If he makes a joke about getting to know her, she says "That's a bit creepy, aren't we here to talk Bitcoin?" And moves on.

At the hand on the thigh, remove it firmly, say with some volume "Please don't put your hand on my leg, it's inappropriate." Then stand up to move seats. If there are no seats, ask "Can someone spare some room down this (other) end of the table?"