[ He sends her a smile over his shoulder, and grabs a cloth, a bucket and detergent. ]

You fill this bucket with hot water, but not too hot so you burn yourself. Then you pour a little bit of this in.

[ He waves the detergent in the air a bit, and demonstrates before he puts the bucket down on the floor and dips the cloth in it. ]

And then you wipe tables or window sills or similar places like this.

[ After swiping the cloth over the edge of the table, he hands it to Saya. ]