What's this?
a bucket
How do you fill when your friend's bucket is empty?
...
When our bucket is full?
...
Do you fill your bucket as well when you fill someone's bucket?
...
What makes your bucket full?
...
How do you call someone who digs somebody's bucket?
Bucket digger
How do you feel when you help your friend?
...
What makes your bucket empty?
...
When our bucket is empty?
...
How do you call someone who fills somebody's bucket?
Bucket filler