Going to Mandir as a Sikh

Namaste, Hello everybody today my family (parents, cousins & Uncle aunt) and I are going to mandir. We all are Sikhs, I wear a patka (I’m a teenager) my uncle has uncut hair and wear a turban and the rest are clean shaved. I’m not looking to convert or anything and neither is my family looking to covert. We are just there for the experience. Can you all please tell me what to do in the mandir and how to be respectful there? For eg in a gurudwara we have to have our hair covered and we can’t wear shoes. PS: I know a lot about Hindu history and I am going to this mandir: https://www.hsvshivavishnutemple.org.au/