Example: "With open arms and an ingratiating smile"
Example: "A smooth ingratiating manner"
To bring oneself into favour with someone by flattering or trying to please him or her.
(followed by to) to recommend; to render easy or agreeable.
Which ingratiates; which attempts to bring oneself into the favour of another, often with flattery or insincerity.
Example: "That was an ingratiating smile."