Context: That was my first time to go to any anime - related convention , so imagine my surprise when I got there and people were dressed up in full cosplay attire , while I was in : T - shirt , shorts and slippers . LOLz . And it was more of the " I just decided to put on clothes today , because ca n't just leave this house naked " kind of shirt and shorts ... whereas everyone else had nice clothes on .

Question: Why would people at an anime convention dress nicely , even if they were n't wearing costumes ?
Options:
0. Anime conventions attract very clean people .
1. People at an anime convention would want to make a good impression on other anime lovers .
2. None of the above choices .
3. People who go to anime conventions are still living at home and their mothers lay their clothes out .
Answer: 1

Question: What is the atmosphere at an anime convention where many dress in cos - play ?
Options:
0. None of the above choices .
1. An anime convention with many people in cos - play outfits has a frivolous atmosphere .
2. An anime convention with many people in cos - play outfits has a buttoned - down , corporate atmosphere .
3. An anime convention with many people in cos - play outfits has a playful atmosphere .
Answer: 3