Answering all their questions as they’d want you to. “I can totally be fair and impartial!” Etc etc. I can keep an open mind. I can listen to all the evidence! Blah blah.
It’s super easy to get out of it “I think all cops are (good/bad)” or for civil “Just looking at your client I already think (insert opinion about their case sucking)”. “I can’t be fair and impartial because (insert whatever bullshit reason)”