How to learn from teachers and their etiquette

Although it is modernization, many things follow the trend and always follow some simple methods, but I think some things are better to follow the old rules, just like learning from teachers. If you want to learn something, you have to respect others and show your sincerity.

It is common to pour and offer tea to the host.

Or buy some tea and deliver it to your door.

But the most important thing is sincerity. I wish you success!