Q. Can I attend a New Year party given by the company and my coworkers. It is very necessary for me to attend to maintain good relations with all my friends at work. Can it be done?
A. On question 694 we wrote:
"Horav Shlomo Miller’s Shlit”a opinion is that one may attend for a short while, however only soft drinks are permitted and no liquor or alcoholic beverages should be consumed in their company. (Shulchan Aruch Y.D. 114: 1. See also Aruch Hashulchan ibid. and Shevet Halevy Y.D. 43, in regards to expensive drinks.)"
Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu Shlit'a