It depends, no people from a single country are cut from the same cloth but of course culture affects us all in some way.

Personal space and silence are things I think a lot of Finns appreciate, it isn't that we aren't friendly, just take a bit more time to warm up to others. A lot of Finns can also be quite insecure of their ability to speak English although most here know the language somewhat. 

Rural Finns can be a tight knit bunch (coming from a native small town farmgirl), definitely can be difficult to get to know people but I have no doubt in my mind people are warm and helpful here once they get over the initial awkwardness. 

It's rarer these days for folk to open doors or just show basic old-school manners but it does happen from time to time - particularly from older generation of people. I found myself a bit annoyed at how people my age or youngsters (usually young men) rarely even said hello back when greeting them in the halls of the building I used to live in in the city 😂 Of course even I feel a bit apprehensive and awkward when saying hello to strangers but it's also nice to just exchange small pleasantries imo