You don't tend to hear people say "the loo" in the US. You would say "the bathroom."No se suele escuchar "the loo" en Estados Unidos. Dirías "the bathroom".
Whenever I was in trouble, you would say "don't worry, everything'll be fine."Siempre que estaba en un apuro, me decías, "no te preocupes, todo se va resolver".
I remember coming to your restaurant when I was kid. You would say "uh oh, here comes the little monster!"Me acuerdo de ir a su restaurante de niño. Me decía, "¡ay! ¡ya llegó el monstruito!"
When I started playing the flute, you would say complimentary things, and that always encouraged me to keep practicing.Cuando empecé a tocar la flauta, me decían cosas halagueñas, y eso siempre me animaba a seguir practicando.