Some churches are so committed to remaining small out of fear that growth will ruin fellowship. They fear when the congregation gets bigger, they won’t know everybody anymore. The idea is that if the church gets bigger, they will become a number. Other people are so committed to the church staying the way it is, they don’t really care if new people are sitting in the church pews because they are comfortable with the people they already know.
Here are some signs that say you are not welcome at a church;

No attempt is made to get information from visitors: Churches that are successful at reaching people are intentional about reaching new people and connecting them to the life of the church and a personal relationship with Christ. These churches often have a repetition tactic. They will have a welcoming strategy and multiple methods to engage newcomers. This includes everything from having greeters in the parking lot to friendly ushers to attractive bulletins and after-service receptions. If a person walks in and there is no attempt to get information from them, they are going to feel like their presence doesn’t matter.

Ushers who don’t greet: Greeting visitors at church is such an important part of the hospitality ministry of the church. They form part of the first impression that a visitor sees. If a person walks into a church and isn’t greeted from the time they step in the church premises until the time they walk in, there’s a really big chance they won’t want to attend your church again as they won’t feel welcome.
Read more: http://naijachurchnews.com/how-to-know-you-are-not-welcome-in-a-church/