2nd interview, Do's and Don'ts

I had an interview and I believe it went well. The next step is to meet with senior managment and I believe there is going to be an interviewer through video confernencing as well. It seems more of a behavioral interview although that's my assumption.
<>What should be my strategy at the interview, remember this isn't a tecnical interview?
<>What should I NOT do at this type of interview?
<>What should be my strategy at the interview, remember this isn't a tecnical interview?
<>What should I NOT do at this type of interview?
Comments
Well, you 'could' ask them for more info about the interview prior to the interview.
Be yourself. Be concise, and direct but modest.
Don't try 'too' hard.
Just my 2 cents. I never had a separate 'behavioral interview'.
Good luck!
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At the first interview, there was so many questions I asked and forgot to ask what the 2nd interview would be about
They explained the next step would be to meet with senior managment, so that would be an interview. So 95% I've made it to 2nd stage unless my luck is
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