1.It is open to both teams and individuals. 2.I like to take part in it as an individual. 3.This donation is from a private individual. 4.She is an individual，with odd looking and odd behaviors. 5.I don t want to be an individual，but I am，everyone thinks I'm odd.

1.It is open to both teams and individuals. 2.I like to take part in it as an individual. 3.This donation is from a private individual. 4.She is an individual with odd looking and odd behaviors. 5.I don t want to be a character but I am. Everyone thinks I'm odd. You are an individual whether or not you want to be one. An "individual" is just one single person. It has nothing to do with being odd. #5 is two sentences. A period is required, not a comma. #4 presents two unrelated thoughts. If you want "with odd looking behaviors" to simply describe this individual then your sentence is fine, but having odd behavior is not related to being an individual. If you want to use a word related to being different in some way, use "character", "original", or "card" instead of "individual". ("Card" is somewhat colloquial.)

1.It is open to both teams and individuals. 2.I like to take part in it as an individual. 3.This donation is from a private individual. 4.She is an individual，with odd looks and odd behavior. 5.I don t want to be an individual，but I am，everyone thinks I'm odd.