zhèyàng biérén bú huì yǐwéi nǐ zǒu diū le yě néng bāng nǐ kàn yíxià bāo huò zuòwèi

这样别人不会以为你走丢了，也能帮你看一下包或座位。

This way, others won't think you are lost, and they can also keep an eye on your bag or seat for you.