Dealing with BM and in laws at SKs events

Do you sit with BM and your In laws at your Skds events? If no, how do you get them to leave you alone without starting anything? I’m not looking for any drama I just want them to leave me and my Bio daughter alone.

And Incase anyone is wondering, my Sd lives with me and DH full time and he can’t make the game tomorrow so I obviously have to take her. I don’t mind, just searching for advice on how to get them to leave me alone since they’re all so rude and filled with bullshit.