It was weird... his smiling impressions were pretty funny though. I don't see how anyone would think Hira would go in a vote to evict situation though
I think maybe it's because Noirin said that she was really different at auditions and Siavash was close to Noirin and so believed it. Maybe there's also an element of competition as Siavash was muslim and Hira is muslim and they both claim to be fashion designers?