I had a different impression about the magnitude of the requests from your comment than from the article. I pictured the "ice cream" request as asking a person

I had a different impression about the magnitude of the requests from your comment than from the article. I pictured the "ice cream" request as asking a person with an ice cream code to let you have a taste, but there's a nuance: the article doesn't actually refer to ice cream, and it looks like it would involve asking a food sample from a store. From the article: "Examples would be asking for their newspaper, or asking for a few dollars, or a phone number, or to try on their shoes. Or going into a store and asking for some free food. [...] I asked for a number of newspapers. I asked to take the plastic flowers from a storefront. I asked to borrow board games from the board game store. I asked to climb a ladder that a construction worker was setting up – and he let me!" For what it's worth, the food sample and plastic flowers requests are made from businesses, were the requests aren't too unreasonable (samples are normal to ask where I live, and the flower request can be paid back with repeat business). However, I admit that the sunglasses request was strange (along with the suggestion to try someone's shoes). I like the spirit behind asking if you can do others favors, but I predict it might weaken the exercise. The behavior is targeting a reluctance to ask for help and favors from others when it counts (it's important for long-term wellbeing to have a balance between taking and giving, versus just giving). It's easier to get rejected when asking to help another person, versus when facing rejection when doing something for yourself (e.g. applying to a job or opportunity).