Options of Saying Hi
You have various options of saying hi, indeed. The first and simplest one is just sticking with hi. You can replace it with a friendly hello but also a good day is appreciated. Given that I speak a couple of languages, why not try hallo or servus, which is perfectly fine in southern Germany and Austria also in some formal contexts. Or we can head further south and transition to a gentle ciao.
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You are still here even though you have just learnt about your options of saying hi? Well, why not practise your freshly gained skill by: