I take people first, artifacts second. By that I help to enhance a shared understanding of the problem and the proposed solution (or the solution space). I’m looking for anything people either find ambiguous or having different understandings of it.
In the direction of what needs to be developed as well what needs to be tested, guided by risks.
Pitfalls are for me mostly on social level. Some people don’t talk much at all, some can’t stay criticism, some say Yes to everything, I’m doing too specific jokes, games of power, etc. Bring any group dynamic you have in mind.
The team needs to have a good enough shared understanding. Any artifact is just a help to remember what we (tried to) agreed on.
Sometimes some short notes, not understandable for outsiders, are good enough.