first time drinking

drinking for the first time on new years plan is to buy absolut vodka and mix shots into juice.

– how many shots will I need to get a buzz/a little tipsy? (5’10 height) I want to feel like i’ve had something to drink but not planning on getting super drunk. Since i’m sharing a bottle with a larger group would 3 shots be enough or would I need to buy something else extra

– any other tips to avoid drinking too much/getting sick