As if it is the most normal thing in the world to walk to the bus stop like this. 

She knows her own mind very well.  When the kind neighbor lady and her husband (who sit on their porch and wait for us to pass) ask her why she is wearing a life jacket.  She looks at them waving into the air in front of her and says in her squeaky voice "Because I wanted to go swimming"  and then she heads off down the sidewalk swimming.