Trudeau handled the entire situation masterfully.  From the classic boxer's 'move to the inside' handshake, to the channel changing 'advancement of female business leaders', to the ego stroking photo gift, he came off as a consummate pro.  He's the only leader I've seen so far that actually backed POTUS' bluster up a bit, all the while maintaining the distinction between their respective core values - without coming off as preachy.