linger
Definitions
To stay in a place longer than necessary because of a reluctance to leave.
To be slow to disappear or die; to persist.
To spend a long time over something.
Examples
The scent of her perfume seemed to linger in the room long after she had left.
We decided to linger over our coffee and enjoy the quiet morning atmosphere.
He allowed his gaze to linger on the painting, admiring the intricate brushwork.