fawn (up)on (one)
To flatter and fuss over one. Any time that famous singer comes here, people can't help themselves— they just start fawning upon her.
See also: fawn
fawn (up)on someone
Fig. to praise and flatter someone. Aunt Mabel fawned on the new baby till the poor child was rescued by her mother. I hate the way our aunts fawn on us at family gatherings.