Do you like the Boston Celtics ? They are my favorite American professional basketball team
I don't dislike them. Why are they your favorite?
The Celtics are one of the most successful in NBA history, but that is not the only reason they are my favorite. 
Wow, how many championships do they have on their record?
17. I have the fondest memories of watching Celtics games with my grandpa and spending that quality time. He taught me all about them. And his love for Boston too