Who first finds out about Chandler liking Monica during Thanksgiving when she overheard a conversation?

Rachel

Which pop superstar's fans call themselves "Swifties"? Which marine animal moves along the ocean floor using tube feet? What device measures how heavy something is? Which act provided free land to settlers who agreed to cultivate it for at least five years? Who was responsible for the famous arrest of alleged Soviet spies Julius and Ethel Rosenberg?