Su Zhinian's question revealed that the man had no idea what kind of present to buy for 'the person hiding in his memory'.
Therefore, during the rest of the shopping trip, Cheng Qingchong would drop some hints in the middle of normal conservation to help him, similar to what she had done with the make-up.
Actually, along the way, Cheng Qingchong had been trying to figure out the perfect present for Su Zhinian to gift to 'the person hiding in his memory'. However, since she had not even seen the person before, had no idea what she looked like, nor what her personality was like, it made choices like shoes or bags impossible.
After they passed a jewelry shop, Cheng Qingchong suddenly paused and turned to tell Su Zhinian, "CEO Su, one minute, I wish to see the selection available at this store."