Flattery will get you everywhere/nowhere
Definition 1 of 2
Pro Tip 1/3Positive Influence
Flattery can be a strategic tool to make a good impression or build a relationship. 
She knew that flattery would get her everywhere with her new colleagues.
Pro Tip 2/3Cultural Variations
In some cultures, praise is expected, while in others, it may seem insincere. 
In his culture, flattery will get you everywhere, so he complimented freely.
Pro Tip 3/3Subtle Art
Flattery should be subtle and credible to be effective; obvious flattery might backfire. 
She cleverly mentioned his achievements, knowing flattery would get her everywhere.