Hi Vera,
maybe you do not need this anymore... But if you are interested, a good event to meet open people, germans and refugees, can be: january, 20., 18:30h Christuskirche Bochum: "United Voices" with music, bands (Yakamus), food and speeches. there will be several initiatives, which help or connect refugees and germans in Bochum.
God luck and maybe meet you there!