My mom found cigarette pack in my room. whats the best excuse?

she was cleaning my room and found my hidden cigarette pack when i was in the shower. later when i was doing my make up in my room, she came in and asked me about it.

i was shook but stayed calm and said that it was from a friend. she seems to believe it but also not.

what did you say when your parent found cigarettes in your room? and what would be the best excuse?
My mom found cigarette pack in my room. whats the best excuse?
Post Opinion