My two best friend, my sister and I want to make a band, but my little brother wants to be in it. How do I tell him he can't be in our band?

Nerds sometimes have difficulty with social cues, so you should make your feelings clear. That being said, give him space, too. You'll want to be direct without appearing clingy. Also,...

You need to respect his decision, regardless of how you feel. Accept your friend status and be patient. Perhaps his feelings will change over time.

The next time they use the nickname, just correct them by reminding them what your actual name is.

You could tell on them for something they did, or say they are lying. However, if you do get caught, trying to fight the punishment will ultimately not work in...

If you feel suspicious about your partner, get access to their cellphone and look at every activity on their phone.

Your friends could be backup or maybe you could teach them how to play a cool instrument like guitar, drums, etc. Just because they might not be able to write...

You could start training him now by getting him accustomed to having weight on his back, basically turning him into a pack-steer. But, he won't be ready to actually ride...

He's worried about you. Don't tell him you're fine; every man/boy knows that when you say, "I'm fine," you're not tell him how you really feel.