As Turkey Day approaches, St. Louis offices will compete against each other to see which office can bring in the most canned and boxed goods for The Salvation Army - St. Louis. But why wait?

The occasion? The annual Turkey Tweetup Office Challenge, to benefit Salvation Army food pantries. From 11:30 a.m. – 1 p.m. on Thursday, Nov. 15 at the Moonrise Hotel, offices from across the St. Louis area will gather to drop off their donations, network with other St. Louis professionals and enjoy a free turkey lunch – all while tweeting about it.

Attendees will use the hashtag #TurkeyTweetup to chat turkey, thanks and volunteer opportunities during the event … and drum up some friendly competition, pre-event. One office has already gotten an artistic start to their collection pile.

The winning office will earn the Red Kettle Trophy, a profile on the Salvation Army website and newsletter, and of course, undeniable bragging rights.

Follow @SalArmySTL and @MoonriseHotel on Twitter during the event as they live tweet the donation totals, photos and other Thanksgiving goodies.

Tickets are free with a canned food donation. Both offices and individuals are welcome to register by Nov. 12 at TurkeyTweetup.Eventbrite.com.