Why would that make him smile?
You obviously aren't in the loop. His adviser is Omar Alghabra, google him. You want me to post countless images of him in muslim gear. How about this conference he attended:
http://www.huffingtonpost.ca/2012/12/22/justin-trudeau-irfan-conference-appearance_n_2353752.html
oh ya let's not forget this one too:
http://www.torontosun.com/2014/08/13/mosque-controversy-follows-trudeau