I'm a non-Moslem, but I work with Moslems. And I've Moslem neighbours. They always seem nice people.
However I believe that most people don't know their own faiths all that well. Muslims are commanded by the Koran not to have non-Muslims as close friends.
Koran
5:51
O you who believe! Take not the Jews and the Christians as Auliya' (friends, protectors, helpers, etc.), they are but Auliya' to one another. And if any amongst you takes them as Auliya', then surely he is one of them. Verily, Allah guides not those people who are the Zalimun (polytheists and wrongdoers and unjust).
It is not permissible for a Muslim man or woman to take a male or female friend who is not a Muslim, because
Allaah has forbidden us to love the kuffaar or take them as close friends and companions
Islam Question and Answer - Should she end her relationship with some kaafir women or use the opportunity for da?wah?
Question :
In the Quraan, it says that we can not take the Kuffaar as awliyaa, but what does that mean? I mean, to what degree? Can we do business with them still? If I'm at school, can we play basketball with them? Can we talk to them about basketball and stuff? Can we hang out with them as long as they keep their beliefs to themselves? The reason I ask is because someone I know does hang out with them in this way and it doesn't affect his beliefs, but I still tell him, "Why don't you hang out with the muslims instead?" He says that most or many of the Muslims drink and take drugs where they hang out and they have girlfriends and he's afraid that the sins of the Muslims will lure him, yet he's sure that the Kufr of the Kaafirs will not lure him because that's something that isn't attractive to him. So is hanging out with them, playing sports with them, and talking with them about sports considered as "taking them as awliyaa instead of the believers" keeping in mind that he is doing that for his own eemaan?.
Answer :
Praise be to Allaah.
Firstly:
Allaah has forbidden the believers to take the kaafireen (disbelievers) as friends, and He has issued a stern warning against doing that.
Islam Question and Answer - What is meant by taking the kuffaar as friends? Ruling on mixing with the kuffaar
I want to repeat here that the Moslems I know are all quite friendly. I don't know that many would even be aware of this Koranic verse. Perhaps they have a different interpretation - or that because we're not 'close' friends, rather just neighbours or work colleagues, it doesn't matter.
Arab hospitality to strangers is quite well known. They consider it a point of honour.