You love your schoolmate he's 18 but you asked him to be just your brother how can you start a conversation with him?
Smile and touch his elbow while you are talking about anything. Touching a man's elbow speaks directly to his genitals and says you are interested but not pushy. It will not make him love you-nothing can do that if the chemistry isn't there for him-but it will definitely show him that the door is open if he chooses to walk through.
THere are several ways. You can casually mention it in conversation. You can come out and just tell him. Or if your closer to your other parent have them mention it! That's what I did. I asked if I could start dating when he gave me the ok and i got a boyfriend, I had my mom casually mentioned it in a conversation when they were alone.
It depends on how much time you have. If asked in passing (or if you're asking about grammar), usually a quick "not much" will suffice. Answers like "good" are not actually grammatically correct, but usually unnoticed. Good is an adjective, good can't be what's up or what's happening. "I'm good" is more correct. If asked by someone in conversation that's not a close friend, a good way to open conversation is giving a specific example…