I started a new job 4 months ago, along with about 6 other new starts. Except I'm a manager and they are all of the level of people I manage (I don't manage any of them though).
One of the guys who started with me asked me soon after we started if I was free at the weekend and wanted to meet up. I politely turned him down. Since then he has twice complimented me for a particular hairstyle that he likes, and he regularly asks me if I'm ok (when perhaps I'm concentrating or thinking about something so maybe my face isn't totally smiley and positive). I was coughing today due to a tickly throat and he craned his neck round from his side of the office to ask if I was ok. On another occasion I was helping someone in my team with a task on the computer, and to do so happened to have to wedge myself between my team member and this guy. I wasn't interacting with him at all but I heard him say under his breath, "well this is snug".
I know that he does have autism so maybe doesn't pick up on all the social cues, and that he doesn't have bad intentions, but AIBU to raise this all with my manager to get it addressed? I want to come to work and not have to worry about it. I also don't want him to get into trouble. I just want it to stop and for me to be able to get on with my job.