The phrase "warm applause" refers to a positive and enthusiastic response from a crowd of people, usually expressing appreciation or approval for someone or something. Full definition
He pays tribute to Nick Clegg, getting warm applause from the crowd. (theguardian.com)
Initially he was greeted with warm applause, but a minute into his leaden, formulaic speech, a lone voice bellowed out, «Justice». (totalpolitics.com)
Right in the center of the demonstrations, Muslim Sheikh Reda Ragab and Coptic priest Father Khazman walked hand - in - hand through the square, welcomed by warm applause and cheering from protesters chanting «Muslim and Christian, we are all one.» (christianitytoday.com)