Could you tell whether I have to use stay on or stay behind in the following context?
We had a meeting today and after it finished, the boss asked me to stay on/behind to talk about my new idea.
What I am trying to say is that the boss asked me to stay after everyone left. While I am at it, would it also be natural to say the following?
We had a meeting today and after it finished, the boss held me up to talk about my new idea?