For Your Information:
1.Never judge from appearance.
Judge not from appearance.人不可貌相.
2.Don't judge a man from his outside.不要以貌取人
3.You can't judge a book by its cover.你不能根据封面来评价一本书.
4.Judging by her accent,she must be from the North.从她的口音判断,她一定是北方人.
我的意见：两者应该可以通用