It is rude to stand with hands on hips or in pockets when talking to elders. It is bad manners to sniff food. When offered something and you refuse, the host is bound to genuinely insist. They will likewise expect you to insist when you offer in a similar situation. Never use the left hand for receiving or giving something, eating or greeting.
Men often hold hands with friends, no sexual connotation.
Homosexuality is against the law. Thighs of women are private parts and not to be exposed. Breasts are not private parts, just food for babies. Women do not open legs or cross them when sitting. Do not point a finger when referring to an elderly person.