I remember hearing a few years ago that it can be a good idea while travelling to have a pin or something representing your country on your backpack as a way to help meet friendly travellers, locals, etc. In all the websites I've checked recently, I haven't seen anything on this phenomenon. I am a Canadian citizen backpacking through Europe for the first time and would anyone say it's a good idea to wear a little Canadian flag pin or something? Any insights or recommendations?
Depending on where the US sits in popular opinion polls in Europe, I remember seeing Canadians with small Canadian flags sown to their packs. I believe it was so they wouldn't be mistaken for being from the USA. Don't know what anyone does these days.

tipically only canucks do that, to distinguish them from the southernly neighboir, who indeed in most of EUR have a well-desevred rep of brashness, overloud voices and only sticking to one another. After all they did not travel that far to meet locals. So if you can behave otherwise: no label/pin/flag needed. and youll be surprised (or annoyed) how many locals further away as some capitals will even mistake you : hey does america have a new flag?

How you'll be received will depend more on your attitude than on a flag pin on your backpack, I'd say.

actually, most younger Euro;'s do it reverse: they pin/label flags of those countries they have BEEN TO on their packs: so you may encounter more wry smiles: only just 1 till now??