Scroll down and check the step by step guide to join a group without admin approval. https://www.gizbot.com/how-to/tips-tricks/4-easy-steps-join-whatsapp-group-without-admin-s-permission-035306.html Add contact or a Person to group in WhatsApp:

https://faq.whatsapp.com/1183494482518500/?cms_platform=android&helpref=platform_switcher&locale=en_US https://www.businessinsider.com/guides/tech/how-to-find-someone-on-whatsapp#:~:text=In%20the%20upper%2Dright%20hand,name%20once%20you%20find%20them.  

Joining in a group requires approval from group admins. either ask them to add you in the group, request them a link to join or a QR code to join the group. https://faq.whatsapp.com/1139252413769848/?cms_platform=web&helpref=platform_switcher Video tutorial:

https://faq.whatsapp.com/5472030609512325/?cms_platform=android&helpref=platform_switcher Note: You may click around and find a device that you are using. ⬇️ Video Tutorial: ⬇️

Scroll down in the number 3 for the steps on how to find the QR code for a group. https://controlhippo.com/blog/qr-code-for-whatsapp/#:~:text=Inside%20the%20group%20information%20screen,code%20representing%20the%20group%20chat Video tutorial: