Find a way if you like. It is best to ask their colleagues in painting education for his mobile phone number so as not to miss the opportunity. It's a bit abrupt or unstable to tell him directly, so find a reason to ask him for WeChat. Just say that there is something you don't understand, and ask more questions in the future, and most boys will agree. If you refuse, it means someone has a girlfriend or doesn't like you. Let's go