Yay, that’s great! You’re going to have an awesome time, and Montreal is super friendly so I don’t think you’ll have a problem striking up a conversation with anyone. Are you sure you want to go out on Saint Laurent Boulevard though? It can be kinda nasty-tacky! There are some super fun bars nearby just on Saint-Denis between Sherbrooke Street and rue Sainte-Cathérine that are usually full of university students and people passing through from out of town. St-Laurent can be kinda Jersey Shore.
Video: The most famous boulevard St-Laurent Douche, the “My father is fucking rich” guy.