If you want to get someone to like you, don't offer to fetch them a Coke, rub their feet, or do their homework. They won't like you any better, and your servile attitude will only cost you their respect.
To remember servile, just think of the word servant––they both derive from the Latin servus "slave." In fact, servile also means anything characteristic of a slave. "After winning the lottery, the ex-slave shed first his servile clothes, later his servile manner. The transformation was complete."