Andre Rubin has 10 years of experience in software development, 3 years in backpacking, and uncountable years in causing trouble. "I'm a benevolent troublemaker," you'll hear him say often.
Depends on the conference. I've attended conferences where there were barely time to make from one session to the next if you had to change rooms. Then, if something was not clear during your talk, if there is no Q&A, then there will be no chance for me to catch you in the hallway.
My favorite conference, however, was one that each session of 30 minutes was followed by a 30-minute mingle time where hallway conversations were taking place.
Also, depends on what kind of questions. If a question is to clarify something presented during the talk, then asking that question on the Q&A session is appropriate, as others in the room might also have the same question. However, if I want to see how what you presented can be applied to my situation, then I should catch you in the hallway.
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Depends on the conference. I've attended conferences where there were barely time to make from one session to the next if you had to change rooms. Then, if something was not clear during your talk, if there is no Q&A, then there will be no chance for me to catch you in the hallway.
My favorite conference, however, was one that each session of 30 minutes was followed by a 30-minute mingle time where hallway conversations were taking place.
Also, depends on what kind of questions. If a question is to clarify something presented during the talk, then asking that question on the Q&A session is appropriate, as others in the room might also have the same question. However, if I want to see how what you presented can be applied to my situation, then I should catch you in the hallway.