ENGLISH! YOU LIKE TO DRINK TEA!
hello. To express yourself properly, it helps to properly act with all limbs and facial expressions, for sounds emitted through the mouth, are also influenced by the shape of the face (obviously people jut their jaw and tighten their lips). Thus... to sum it up. your body language talks too. we should hear it.
Also, try portraying many emotions. anger, joy, resent, jealousy, sadness. this is all merely good practice.
You are good. definately. because i really thought two people where talking together. well done.
P.S. i too am available for voice acting. (if you have cute chibby characters or animals LOL) check out my voice demo if you want. :D