What's the general word for '样‘ in '这样，那样’，‘小样’, ‘怎样', ‘好样的’? It is hard for me to find out one general or exactly English word for '样' in different contexts, it is so common in Chinese.
样 means 模样 or 样子 (manner/way; appearance/ look) 

这样 = this way/ like this

那样 = that way/ like that

怎样 = what way/ like what/ how

小样的 = small looking one (mock people for being small minded or undignified)

好样的 = good looking one (use in positive way to praise someone looking good by doing something or use in ironic way to mock someone looking bad by doing something)