While speaking when should I use "alright" and when should I use "okay" ? Their meaning what I think is somewhat similar yet their sense seems to be different.
Please provide some helpful examples with your explanations.
When I am saying the meanings are similar but senses are not same. This occurs with synonyms. Yes. That is what synonyms are what I believe. Such as poor, broke, bankrupt are synonyms but we can't use them in same sense or in same context usually.
In the first edit I used examples of poor, broke and bankrupt for the ease of understanding. Of course this is not the case with "alright" and "okay". They are more interchangeable. Nevertheless, as I said before, that their meaning is similar , but their sense differ. If I would think of some other words like these, they will also make some new questions which I don't want to include in this.
Why do I say "alright" and "okay" has similar meanings? Because when we say alright, It gives a sense of satisfactory response, such as to put it in "fairly well" response. When we say okay I presume it gives a sense of satisfactory response but a "not specially good" hidden in there somewhere also. The sense of the words may differ that alright carry a bit of positive outlook and okay may carry a bit of negativity with it.
Now I am not sure of these conclusions but this is as far as I could gather from what I have observed while listening to natives speak.
I would had put this 3rd EDIT in answer but for good reasons I don't have those privileges now.