At the beginning of every year, the SCAN students (English-speaking INSA section) organise an integartion weekend: the WISC. As the bachelor's is the only other english-speaking program in the school, we are invited to their awesome integration week-end! It takes place in a chalet up the mountains, usually during the weekend ending the first week of class. At INSA, you'll always have the chance to meet students (French or international) from other sections and this week-end is where you can get started.
It is definitely worth it and highly recommended !