"Low risk" requires a hyphen when it functions as a compound adjective before a noun, such as in "low-risk investment." The hyphen helps clarify that "low" modifies "risk" as a single concept rather than suggesting that "risk" is low. However, when used after the noun, as in "the investment is low risk," no hyphen is needed.
No, faux pas doesn't require a hyphen.
No, the word 'together' does not require a hyphen
"Documentation" doesn't require a hyphen.
No it doesn't require a hyphen.
No, the word "part time" does not require a hyphen when used as an adjective. It is commonly written as two separate words in English language.
No it doesn't require a hyphen.
The word "affection" does not require a hyphen.
Only if used as an adjective, e.g.: "We'll fund your coup provided it doesn't put our assets at risk." "Mechanisms for protecting at-risk children must be improved." Or to put it another way, only hyphenate the two words if they appear before the thing that's at risk (or alternatively the at-risk thing).
No it doesn't require to be hyphenated.
No, the correct spelling is extracurricular. Adding extra does not require a hyphen. For example, extraterrestrial is extra+terrestrial (no hyphen needed).
"Incorporating" is one word and doesn't require a hyphen.
No it doesn't require a hyphen.