I hate to break it to you, but Montreal can be very "hit or miss". They sometimes don't announce stuff in the lounge, then the customer is made to feel responsible for not responding in time whether it's boarding, diner reservations, etc. I believe it's called "circling the wagons". My process in the lounge in Montreal is to grab a seat near the window and watch very closely what is going on outside. On the "hit" days though, they're very good.