Newcastle lost 1-0 at Stoke City on Wednesday night.
It's unclear what was said and done as Janmaat approached fans but there was definitely some emotion on show - both from supporters and the player himself.
Janmaat may have had good intentions heading towards fans but looked frustrated as stewards had to make sure no supporters got too close.
Newcastle need five wins from 11 games to reach 39 points but have only managed six from 27.
Next up for the Tyneside outfit is a home clash against Bournemouth this weekend. But, even though Newcastle's form at St James' Park is better than on the road, few will confidently be putting any money on McClaren's men.