Journalists are looking for the human angle in what you are doing, how it relates to their audience. Good journalists are also looking for trouble.
Talk in stories - “the other day I was playing around with this and .. such and such happened” this is much easier for people to relate to than abstract descriptions.
A good way to prepare for an interview is to make a list of all the bad things that someone could possibly say about your story - be exhaustive, as you want to make sure they can't possibly mention something you haven't thought of, and catch you off guard.
Then make an exhaustive list of all the good things about your story.
Then draw lines between the bad items and the good items, and you have a way to move from bad to good from anything they can come up with.
There are 2 types
You will be asked some silly questions at the start for them to get the sound levels right
Try to lead the interview, you do this by getting something really interesting in the first thing you say, then the interviewer will move away from the questions they have thought of and just ask you about that. Journalists like this too, as it means you tell them the story to write rather than the other way round, and it's more interesting.