Again, I have a few questions on vocabulary.
http://i.imgur.com/2iDF1.jpg
1/ Does 習い事 in this context mean "course"?
2/ Is 陸上 short for 陸上競技?
3/ 習字 here means "calligraphy", correct?
4/ Does 蘭くんと葵ちゃんが逆だったらよかったのにねえ mean "It'd be great if Ran and Aoi switched places"?
5/ By しないと思う, does the narrator mean he thinks that a childhood friend who is growing up and becoming more feminine everyday would not do things like putting a guy in a headlock or 胸当て?