Always carry yourself in a respectable and confident manner. There is a fine line between being confident and arrogant. Walk straight with your shoulders back and your chest out. When meeting someone, smile and offer your hand to shake. Remember the names of people you meet and try to engage in small conversations. It is normal to laugh, although laughing so hard may be considered rude in many occasions.
Mind your table manners and eat slowly, chewing your food properly. Use the utensils from the outside in. Whenever a lady stands up to be excused from the table or arrives to be seated, you have to stand up. Serve the ladies if you are passing food on the table. Engage in conversation as you dine.