Identifying the real objection
When customers say they want to "think over" their buying decision, it's often safe to assume that they have an objection they're not sharing.
Source: 123 Super Sales Tips
Asking "What do you want to think over?" can seem intimidating, and probably won't help you uncover the real problem. Instead, ask, "Is it a question of price?" Then quietly wait for a response.
By guessing a specific objection, you'll encourage prospects to correct you by stating their true concern. If your suggestion is correct, you probably found out what's making your buyer hesitate. You might be surprised at how much this strategy improves your closing ratio.