What is the characteristics of reflexive?

"Reflexive" can refer to a few different things, so to give you the most accurate answer, could you please clarify what you're asking about?

For example, are you interested in:

* Reflexive pronouns (like myself, yourself, himself, etc.)?

* Reflexive verbs (verbs that take a reflexive pronoun as their object, like "I wash myself")?

* Reflexes (involuntary movements in response to a stimulus)?

* Reflexivity (in the context of language or thought)?

Once you tell me what kind of "reflexive" you're interested in, I can provide a more specific and useful answer.