Recollect activities you often do in the past but never do them again since migration. Do it here in your new home. Overcome all the difficulties. If it is being perceived as inappropriate by the locals, ignore them.
Practice bad English, re-learn the strongest accent from your hometown, find how you used to sound when you practice English in your homeland.
Dress up as the same as your old style, even they are bad taste, or they are too fancy, or they are fake well-known European luxury brand made in a Chinese village.
Re-arrange your home like how your family does it in your Childhood. eg. Fill in the gaps between the walls and cabinets with things that doesn't make sense in your house. Wrap your off-season shoes in old plastic bags and hide them on the top of your wardrobe.
Have lunch as how you have lunch back in your home town. If there are no similar scene, make a scene to have lunch.
Call your family and chat about what they beliefs deeply. Chat about what happened that makes them believe so. Chat until you heard an extremely funny story that contradicts everything they just said. Make a monument for the story.
Cook a daily dish you had before, make sure all the ingredients are wrong. Replace them with the most common ingredients from your local market; Cook a famous local dish, make sure all the ingredients are wrong. Replace them with the ingredients from your hometown.