Around here its as well no custom to present you with gifts, but when you meet them the first time, I think its appropriate to do a general "Hallo! I am ..., your neighbor from right there." If they try to get you into gossip, and you are as bad at "weather talk" as I am, maybe try to get them into an informational talk about the neighborhood, so where are which kind of shops, the post office, the nearest good restaurant (specially when you move in, and half of your kitchen stuff is still unpacked you are in need of an restaurant ^^), a reliable car-repairshop, ...