You can putt out holes in a match for score postings once the opponent has conceded the hole.
When an opponent concedes the hole, you have an option to pick up your ball or play the hole out.
Or, you can declare an obvious two putt under many circumstances and write down the score as such. Sometimes an opponent may challenge your decision, if it becomes apparent your pushing the three footer margin to post a higher tournament score.
If you feel you have a very good chance of making the putt, then pick it up.
If you elect to putt out and miss the putt, this can mess with your head the next time you need to make that three footer.
I sometimes make an opponent putt out a tricky slider, just to mess with his head and place that little bit of doubt in their mind simply for the reason of when they may need to make a short putt to win a hole or match.
I have found the opposite approach works as well when you concede a couple of short putts early in the round and then when they need to make a crucial putt later in the match, they may lack the confidence because the have not had to make them earlier in the day.
If you play Nassau's against your friends on a regular basis with strategies of when to press the bet, then the three footers generally become more important and play a bigger role when the big bucks are on the line.
A friendly Nassau Game will make a better "Match" player out of many golfers.
Even if it's just a "Beer" on the line !!!!!!