Gestures! They come in two categories: polite and rude. With global travel and relocation so readily available (and different cultures proudly owning their own gesturing mannerisms) it is well worth travellers and expatriates taking the time to learn what is acceptable in the wild world of gestures!
Moving to a new location is extremely exciting and a fantastic opportunity to learn fresh life skills including how to speak a new language. This may seem a daunting task at first (and many assignees describe feeling nervous regarding language barriers), but do not fear: there are many tools and tricks that will have you chatting with the locals in no time!