something that is used

Song Yan strode out of the hospital with Fu Rong before she headed to the edge of the street and then raised her hand to flag a cab to the Fu house as she turned to look at the woman who was still waiting for her at the gates of the hospital, actually, she has seen Shen Yu when she strode out of the hospital but she did not want to care about her, however, the woman was rather stubborn. 

When she saw that Song Yan wasn't paying attention to her, Shen Yu instead of leaving with a huff actually got closer and even tried to use a small trick at Song Yan. The trick wasn't harmful but if Song Yan wasn't paying attention and did not have Fang Yanli to take care of the spell that Shen Yu tried to attack Song Yan. The spell was small and except for hurting Song Yan's butt when she walked, it would have done no harm other than that but Song Yan was someone who would retaliate at even the smallest grievance and she looked at Shen Yu in a rather unfriendly manner.