What technique is I pressed my face into the snow gritted my teeth and waited

answer: make the students take turns and express their opinions in 30 second intervals

explanation: in montessori schools we do this in socratic discussions

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.