"Hey! Are you going to drink it or not? If you're going to drink, please drink up quickly!"
"Hey! Do you want to drink this or not? If you want it please drink it now!"
飲み物がまだ入ってるコップの方がより楽しいおもちゃになるかも知れませんね！
おーい！ = Hey!
飲むの？飲まないの？ = Are you going to drink it or not? / Do you want to drink this or not?
飲むならちゃっちゃと飲んで = If you're going to drink, please drink up quickly!
ちゃっちゃと = quickly! ; chop chop (and drink up!) (ちょっと昔ぽい子供と使う言い方）
drink up = 飲み干す
アメリカ合衆国 
