suck up to

• flatterPraise to please
• brown-noseFawn obsequiously for advantage
• kiss upFlatter obsequiously for gain
• bootlickFlatter servilely for gain
• fawnYoung deer, or flatter

grovel · toady · ingratiate · schmooze · apple-polish · kowtow · crawl · butter up · sweet-talk · praise · compliment · obsequious · sycophant · teacher's pet · yes-man · favor · boss · promote