Clicking after rhinoplasty. Could the graft be loose?

Hello and thank you for your question. I have seen this exact situation before.  The strut graft is moving and may need a slight trim.  I recommend you return to your surgeon and share your concerns.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

One of the complications with a columellar strut long enough to reach the anterior nasal spine (common for increasing projection of the nose) is that you may hear clicking when making certain expressions.  As long as there is no tip deviation, you don't have to worry.

If there is a clicking with smiling but it does not effect the appearance or shape of the nose then you do not need to worry. Only if a deviation happens that the strut might need to re-adjusted. RegardsDr. J

Unfortunately, the clicking sensation you describe can occur after columellar strut placement and is a result of the lower part of the strut (at the base of your columella) sliding against the anterior nasal spine. This may improve with time as the complete healing process after a rhinoplasty can take up to 1 year. However, if it persists and is bothersome, I would recommend having your surgeon re-evaluate and determine if a small revision could help correct this. Good luck!

This can occur as mentioned below with certain expressions.  You probably did not harm the result when you pushed on your nose after surgery.  If there are no change to the appearance, not to worry.