You can see how active the members of each Club are by checking their Club Activity indicator.

It is based on the number of days since at least one member was last active:

●●● - last active between just now and 1 day ago

●●○ - last active between 1 and 3 days ago

●○○ - last active between 3 and 7 days ago

○○○ - last active more than 7 days ago