oh (interjection)

Hi
This is a question for native English speakers (sorry for my English, I'm from Italy) and requires a one-word-only-answer, or a longer one if you like. I'll appreciate any contribution.
Please read the following simple word:

Oh

How do you feel about it? Do you feel someway positive and curious or, on the contrary, negative and worried? In other words, what do you expect the entire phrase in which "Oh" occurs will be like? Something positive such as "Oh, what a lovely day" or "Oh, that's great news" or something negative such as "Oh, what a shame..." or "Oh, it'raining again".
Please consider "Oh" in isolation, without any undertone given by the context.
I hope I've been clear.
As I told you, you can answer with "good" or "bad" only, if you want.
Thanks a lot!

If you want to know more, here's the whole story:
I'm working to find a new name for my little handicraft studio.
I'd like to include "Oh" in the name, but of course it must be a positive Oh. I prefer not to use "Oh!" (with the exclamation mark) because it cannot be used in the website name.
In Italian most people perceive "Oh" (the word is the same) with a positive connotation. Since I plan to sell my products also outside of Italy, before I register the name I need to be sure that "Oh" is mostly perceived as positive by native English speakers as well.
Thanks a lot again,
Andrea

Welcome!
The dictionary has an answer for you 👁 Smile :)
There's one at the top of the page - enter Oh into the search box to get oh - WordReference.com Dictionary of English The significance of the word is almost totally dependent on context (and in speech, by intonation). The omission of the ! won't make much difference.

oh /oʊ/ interj., n., pl. oh's, ohs. interj.(used to express surprise, pain, disapproval, sympathy, agreement, and other emotions):Oh! What's that noise?

Thanks Julian. An Italian dictionary gives exactly the same definition. Of course the significance depends on the context, but "Oh" ridden without context for most of the (italian) people I know is perceived as positive.
As it seems for English people (or, at least for you) there's no difference. Thanks!

Andrea 868 said:

Please read the following simple word:

Oh

How do you feel about it?

I assume it is a 1-word sentence: an interjection. Traditionally we end an interjection (exclamatory sentence) in "!", but nowadays many people use "." instead.

Adding no punctuation at all means it was said softly, quietly, with no stress. Said that way, it means something like "I understand. I am disappointed, but I understand." It is a brief reply to disappointing news.

That is what I thought it meant.

Thank you for your interesting answer, Dojibear.

Oh can be positive or negative. 'Oh, yes!' and 'Oh, no!' are equally possible for me. Intonation can alter the meaning; a rising tone makes it sceptical; a high falling tone might indicate realisation of something.