if you mean an apostrophe, it would be Tina's or for a comma you would just place the comma at the end of the person's name.
between went and friend
Nowhere-the sentence doesn't need a comma
You write Hi, friend because you also write Hi, Sailor.
"No!", is what my friend said when I asked him that question. (See?)
It is almost always a comma, but rarely I have seen a colon. When you are writing a formal letter, it is a comma, but if you were to write a informal letter to a friend, it doesn't really matter. For all of the letters I write I use a comma, and so does everybody else I know.
Not necessarily. There is no word or phrase in English that requires a comma. Use a comma only if the phrase as well is separated from its context.We may see your brother, and his friend as well.
nothing happens! my friend, Kendra, at school tried it and nothing happens.
It should be--- I asked my friend,"When is your birthday?"
Depends if you're using it in a sentence like this:Yesterday,I went to school.Then,yes you do need a comma. But if you're using it like this:I went over my friend's house yesterday and it was fun!Then in that case,no you do NOT need a comma.
After name place a comma: "Dear Jonny," Closing section is more personal: "your friend, Bobby"
Yes The sentence with the comas would be: Natalie's best friend, Zoe, became her agent.
last comma before the and is not necessary