You really ought to seize the moment. Seminars are great places to socialise. I think of it as a form of destiny. You are there in that moment of time because it was destiny. Be it a form of knowledge, a person, an inspiration, spend that time reflecting on where that piece of puzzle (attending seminar) fits in with your life. Nothing is coincidence. The universe has a pattern. You might also appreciate and reflect on those who put the seminar together, notice the details, organisational efforts etc. etc. lots to reflect and ponder on.