I'm not American as well, and I receive lots of spam calls (average of a couple per day I'd say). I now have developed a "feeling" on whether or not I have to

I'm not American as well, and I receive lots of spam calls (average of a couple per day I'd say). I now have developed a "feeling" on whether or not I have to pick up the call, based on if I'm expecting a call, country code, similarities with previous spam phone numbers, etc... It's really annoying.