Hello, I have an issue.

I have a users table (id,name)
Eg. 1, cmircea

Another table called features (id,feature)
Eg. 1,hair colour; 2,eye colour; 3,interests

Another table called attributes (id,feature_id,attribute)
1,2,blue; 2,2,green; 3,2,black
3,3,computers; 4,3,music; 5,3,reading

How do I make the connection between users and attributes table?
So basically I want to set for every user hair colour, eye colour, and