Another very important addition.
I have a book here at home by Barron's called "American Accent". The book says that there are certain things Americans do with accents, melody, intonation, etc. that make them distinct from other native speakers of the English language. If you don't feel those inflections and don't use them, you will never be "one of them".
DOGS eat
BONES. The nouns are more informative than the verb, so they should be stressed. They almost "eat" the word "eat".

They
EAT them. Pronouns are generally not as important, not as informative as the verb (there are exceptions, of course), so they should not be stressed, etc.
Another thing I like in English is that different stress gives an entirely different meaning to the sentence you say (although in Russian, you can do the same, we have word order, cases, etc. to stress that kind of nuances):
I didn't say he stole the money. (somebody else did)
I DIDN'T say he stole the money. (you are lying)
I didn't SAY he stole the money. (I merely hinted at it)
I didn't say HE stole the money. (somebody else did it)
I didn't say he STOLE the money. (he may have borrowed it)
I didn't say he stole THE money. (rather some other money)
I didn't say the stole the MONEY. (rather the jewelry).
I am not even talking about how to pronounce certain consonants, vowels, etc. to get it all right. That is also an element in piano playing. If you play Mozart before an audience in Vienna and you are not ready for this kind of expectations about how Mozart is generally understood, you will not be "one of them" with your speedy scales, and it may be your very last concert over there.
If you are a classical pianist and you try some Jazz before an audience of Jazz lovers, you should feel their inflections very well, otherwise you will be perceived as "stiff", "cold", etc.
P.S.: If you want to say something, you have to make a point, ALWAYS.
You could say: "I love you", "It's you I love", "You're the one I love", etc. but you have to MEAN it for him/her to get the message. That's music.
