I went out with "boys" from Canada last night. Everybody has a same kind of notion, interests, and atmosphere, so luckily we could have a time to get together in one place last night.
Actually I've not planned boy's night frequently before, so have never experienced such a open and free feeling with only guys! It was really interesting. Drinking beer, guys talk, whatever we are interested in, we could share and enjoy the time together. It was like, I guess, a "girl's night" between girls. 6 hours had passed like an arrow.
I'd like to plan again such a small night with friends sometimes. When you receive the invitation, just say "All right", and share time and space with me!