If you own a sports bar, then you probably depend on big games to bring in an abundance of customers. If the big game comes around and only 10 people wander in, you'll have wasted money on staffing and supplies. So how do you make sure the bar is packed during the next big game? Start by following these strategies. 1. Advertise heavily on social media. Where do people go when it comes time to make plans with their friends for the big game?