Make a pass at somebody
Definition 1 of 1
Pro Tip 1/3Cultural Sensitivity
Understand cultural differences, as making a pass can be seen as inappropriate or disrespectful in some cultures. 
In some cultures, making a pass at someone you just met is frowned upon.
Pro Tip 2/3Informal Context
'Make a pass at somebody' is used in casual settings and can be too forward in formal situations. 
He decided to make a pass at her while they were at a friendly beach bonfire.
Pro Tip 3/3Potential Risks
Making a pass can sometimes lead to misinterpretation or rejection, so it should be done thoughtfully. 
He made a pass at his coworker, but she didn't feel the same way.