A "conciliatory gesture" is a kind or friendly action that someone does to settle an argument or repair a broken relationship. It is an attempt to make peace or show goodwill. Full definition
The group has agreed to meet with broadcasters and is making conciliatory gestures. (inc.com)
Who knows; maybe Charlotte Rampling will end up on the stage, some sort of conciliatory gesture from the H.F.P.A. for not nominating her for 45 Years last year. (vanityfair.com)
It is therefore an almost conciliatory gesture that the artist reinserts herself into this narrative. (contemporaryartdaily.com)