Trip to Brussels and Paris

hello to the people of Brussels and Paris,
i wil be visting Brussels and Paris from 26 to 31 Aug and Aug 31 to Sep 3rd respectively for a SAP training course and will be all by myself. I am currently living in Qatar. I am interested in knowing about the scenic places to visit, the nightlife these cities have on offer and meeting young IN members if possible. I have already booked my hotel in Brussels in the City centre area.