Every morning I do the school run (or walk to be precise, not that energetic lol). Round the corner from me on the way to the school is a garage. About a month ago I noticed a bloke that worked there used to stare at me. He used to just watch me (which made me feel uncomfortable at first!) then about 3 weeks ago he started saying hello. I've noticed that he's always outside now when I walk past, both in the mornings and in the afternoons when I pick my son up. He's even started saying hello to my kids!
I'd say without any proper conversation you can't tell. He's possibly being nice, possibly new to the area, possibly lots of things, you need to try and make conversation for some reason. Do you have a car??! ;) x
I have actually got a car and took it there over a year ago to be looked at but he didn't work there then. Having said that my MOT is due soon, maybe it's too forward though as I never normally go there