Behavioral patterns across all closed won and closed lost ICP deals (50+ homes). Last updated March 2026.

The #1 Signal: They Ask Questions Unprompted

Not in response to yours — on their own. "How does delivery work?" "Can we customize the package?" "What happens if we need to pause?"

Unprompted questions mean they are already mentally inside the product. No other signal predicts close as reliably.

What a Great Prospect Looks Like

Behavioral fingerprint of closed won deals:

• Replies within 24–48 hours of an outbound email
• Reply word count is 50+ words — they're thinking, not just acknowledging
• Casual, informal tone — they write like messaging a colleague, not filing a form
• References a specific detail from your previous email (they're actually reading)
• Introduces a second stakeholder or copies someone in
• Asks about timeline or next steps before you do

What great does NOT look like:

• Enthusiastic first reply, then silence → most common false positive
• Short replies that only answer one question
• Every reply is exactly one sentence
• They never ask anything back
• "Send me some information" with no follow-up question