Static aspect
Go, calligraphy, painting, piano or violin were all fashionable at that time, which not only exercised the mind, but also exercised the character and increased the talent.
♂? Dynamic aspect
Moving: Swimming and table tennis are good opportunities.
Linguistic aspect
In terms of language, it is also a good time to learn a foreign language if conditions are good.
Static and dynamic combination
You can combine static and dynamic according to his hobbies.