Friendly is +2, Neutral is 0, then it gets progressively negative from there. The outcome is a mixed bag. If they really thing about it, it would be more harmful for them to not contact the Star in most cases, but that could probably be spun to make it seem really disastrous if they do contact the Star. None of the negotiation modifiers really apply here, they're mostly for pay-based situations.
There are a variety of modifiers in the other categories that could apply (Subject distracted, etc.)
In all cases, the kids may take a -1 penalty to their resistance test if they're intoxicated.