They do everything so that people will see them. Look at the straps with scripture verses on them which they wear on their foreheads and arms, and notice how large they are! Notice also how long are the tassels on their cloaks!
And everywhere Jesus went, to villages, towns, or farms, people would take their sick to the marketplaces and beg him to let the sick at least touch the edge of his cloak. And all who touched it were made well.
As a result of what the apostles were doing, sick people were carried out into the streets and placed on beds and mats so that at least Peter's shadow might fall on some of them as he passed by.