You : Do you think Sonics will win the game tonight?
Friend : I don't think so. They are not good enough tonight.
You : You wanna bet?
Friend : Yeah? How much do you want?
You : Let's make it 30 Dollars!!
Friend : Alright. I'll go for it.
Example 2
You : Do you think Sonics will win the game tonight?
Friend : Not a chance. Spurs will kick their butt.
You : Let's put some wager on it?
Friend : No sorry. I don't do gambling.
You : Wow. You are one of a kind.