No kidding, with all the jokes about the extroverted $scientist being the one looking at your shoes during a conversation. Then again, one can simply be friendl

No kidding, with all the jokes about the extroverted $scientist being the one looking at your shoes during a conversation. Then again, one can simply be friendly to everyone, without becoming close friends or assuming any liabilities. Friendship is a rather abstract, not to say imprecise, word.