1. blow someone off: 不理睬、回绝、让或人一向等着
" She's going to blow off John because she's not interested in him. =不理睬
" The party was full of losers so she blew it off. =cancel
2. check out someone：审察
Why don't we go and check out those cute girls?
3. come on to ：招引或人、跟或人调情=flirt
She felt bold and confident enough to come on to him at the party.
4. fix someone up to ：组织约会
I thought you didn't like her and had fixed her up with your friend Paul.
5. hit it off：共处很和谐
I took her to dinner and we totally hit it off.
6. let someone down easy： 不损伤他人
" No bloody way = Letting them down hard
" Sorry I won't be in town = Let down easy
" The teacher knew that Paul would have to repeat the course and that there was no way to let him down easy.
7. on the rebound: 爱情空档期
Jeremy just broke up with his girlfriend, it looks like Jane is trying to catch him on the rebound!
8. play hard to get：成心摆架子（表明说不其实心里一阵狂喜）
I cannot tell whether she doesn't like me or if she is playing hard to get.
9. strike out to ： 失利
Every time Benny asks a girl, he strikes out. Maybe he is too aggressive.