Jessica Alba: Beverly Hills, 90210 had a no eye-contact rule when I guest-starred
https://pagesix.com/2020/10/01/jessica-alba-i-was-told-not-to-look-at-beverly-hills-90210-cast/
“It was like, ‘You’re not allowed to make eye contact with any one of the cast members or you’ll be thrown off the set,'" said Alba, who appeared on two episodes in 1998, on the YouTube show Hot Ones.