My brother teaches my sister to play the piano and see my friends off.

A circle of friends is to show your own dynamics and life, and you don't need to think too much about other people's ideas. But if you want to make a circle of friends in a big way and leave it for your children to see when they grow up, you can refer to the following methods I often use:

You can record the video of playing the piano. My elder sister never attends meetings. You can record the learning process, which shows that my elder brother teaches well and seriously.

Simple sentence copy, don't attach too many words, such as "teaching and learning" and "brother and sister", so that people who watch friends will be curious about the video content, click to see what is going on.

Just send a circle of friends, not too much, and keep it fresh.

All the above are reference opinions, in short, how to come.