1. Invite to join: If you are invited to join by a member of Xuzhou Barbecue Group, you can enter through the invitation link or invitation code. You need to contact the group owner or other members to obtain an invitation link or code, and then open the link or enter the invitation code in WeChat or other social media applications.

2. Search to join: If you want to join the Xuzhou BBQ group, you can search for relevant keywords in WeChat or other social media applications, such as "Xuzhou BBQ group", "Xuzhou food group", etc. If the group does not have privacy permissions set, you can directly apply to join.