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From my experience quite often you can hear as answer just "нормально, как у тебя?" without any extra details.

kwatts59, it's too official style!

Hello, how are you?
Привет, как поживаешь?
Privet, kak pozhivaesh'?

All the best, write soon.
Всего хорошего, буду ждать ответа (= I'll wait for your...