audience clapping CC BY-NC by https://www.flickr.com/photos/smackfu/2916057/in/photolist-fWQR-btMAnf-hqCEqD-rL6nLx-2g5tMT-8C3f7u-9bpTzN-b5xoeR-8HihYS-b5xtvr-i2HQFu-b5xuKX-4LvohK-aoxvr3-dgz2oq-d9RSGq-q67Djb-b5xqLZ-jYUhJ-b5xqRt-q2agpM-b5xoDt-hpnd8U-pARtA1-ao4qm9-ao4q3L-ao1DHH-forBRe-b5xuPR-f8qrpk-b5xtND-b5xtVx-7Fq7kn-anK821-4zemKp-jYUfW-aqP48s-7BZpEf-d9RSHS-anTf7F-b5xu1a-b5xpax-c3XSJ9-aofJU-b5xope-ao4b6q-9LiyaR-pnp72D-bgG5LD-9wvBEi