Reference calls are deceptively easy to mess up. You pick up the phone, you want to be honest, you want to be helpful, and somehow the candidate does not get the job. It happens more often than people admit, and almost always because the reference giver did not realize how much weight their words carried.
Before you agree to give a reference, you need to be honest with yourself about one thing: can you give an enthusiastic reference? Not a fair one. Not a balanced one. An enthusiastic one. If the answer is no, tell the candidate now so they can find someone else. A lukewarm reference is almost always worse than no reference at all.
Agree to Do It Only If You Actually Mean It
Saying yes to a reference request because you feel obligated is one of the most common ways offers fall apart. Hiring managers are trained to read tone. A three-second pause before "yes, he was a solid contributor" will register as a red flag, even if you never intended it that way.
If the candidate asks and you have reservations, the kindest thing you can do is say: "I want to make sure I can give you the strongest reference possible. Can we talk for ten minutes first?" That gives you a way out that protects them.
Prepare Before the Call, Not During It
Do not walk into a reference call cold. Ask the candidate to send you the job description, the company name, and two or three things they want you to emphasize. This is not coaching you to lie. It is helping you connect your real experience of them to what the hiring company actually cares about.
Spend five minutes writing down one or two specific stories. Not adjectives, stories. "She closed our first enterprise deal at $180k ARR with zero support from a sales team" is worth ten times more than "she is a great closer." Specificity signals credibility, and credibility is what gets offers extended.
Watch Your Language During the Call
Certain phrases sound neutral to you but read as negative to the person on the other end. Watch out for these patterns:
- "He works best when given clear direction" (reads as: cannot operate independently)
- "She was great once she found her footing" (reads as: slow starter)
- "He has a lot of potential" (reads as: not there yet)
- "I think she would do well in the right environment" (reads as: she struggled here)
Every qualifier you add is a signal. If you catch yourself about to add one, stop and ask whether the qualifier is actually necessary or whether you are just trying to sound balanced.
Handle the Weaknesses Question Carefully
Every reference call includes some version of "what is an area where this person could improve?" You cannot dodge it entirely without sounding evasive, but you can answer it in a way that does not do damage.
The formula that works: name a real limitation, explain the context that made it manageable, and then pivot to evidence that they are actively working on it. "Early on, she was reluctant to delegate, which made sense given how scrappy the team was. Over the last year I watched her build out a process that let her hand off almost all of our reporting work, and the team responded really well to it." That is honest, specific, and forward-looking.
Avoid picking a weakness that is directly relevant to the job they are applying for. If they are interviewing to manage a team of fifteen and their real weakness is people management, either find a different weakness to discuss or tell the candidate you are not the right reference for this particular role.
Do Not Volunteer Information You Were Not Asked For
This is where well-meaning references cause the most accidental damage. The call is going well, you feel comfortable, and you start adding context nobody asked for. "Oh, and I should mention she was going through a difficult time personally that year, which I think affected things" is something a hiring manager will write down and discuss internally for days.
Answer what you are asked. If a question does not apply, say "that did not really come up in our work together" and move on. You are not under oath. You are helping someone get a job.
End the Call by Restating Your Support
Before you hang up, say it plainly: "I would hire her again without hesitation" or "He is someone I have already recommended to two other people in my network." A strong closing statement sticks. It gives the interviewer something to quote back to the hiring committee.
If you cannot honestly say that, you should not have taken the call in the first place.
The One Thing to Do Before You Hang Up
After the call ends, send the candidate a quick message letting them know it happened and roughly how it went. They are anxious. Thirty seconds of your time will matter a lot to them, and it gives them a chance to address anything that came up before the hiring team makes a final decision.
Your job on a reference call is not to be a journalist. It is to be an advocate who tells the truth. Those two things are not in conflict, as long as you prepare, stay specific, and remember that every word you say carries more weight than you think.

