ANSWER:

You must observe your morning and evening athkaar to be protected from evil eye and as long as you do, no harm will come to you by the Grace of Allah. 

You can advise them with good manners, wisdom, knowledge, and diplomacy to say “Allah humma barik”.

QUESTION: My cousins and relatives continuously glare at me and say that I look beautiful and all but never says Masha Allah How can I not sound rude and ask them to stop continuously repeating one thing as I fear evil eye