My work colleague is fairly new but she's sat right opposite me and doesn't stop taking and laughing...at nothing!! She is so loud and laughs at everything including things that aren't even funny. It drives the rest of the office mad too but they don't have to sit opposite her. She's really lovely and helpful but sometimes I just want to do my work in peace and I can feel myself getting annoyed and have to try real hard to just smile and act polite. Honestly its tiring sometimes. Anyone else feel like this? Am I just a miserable cow?