Yep.. need the SG reading. Even better, do a couple of readings a few days apart. If they don't move then it has stopped.
Airlock activity is a very unreliable indicator of fermentation activity. More likely it just isn't sealed properly somewhere. My airlocks almost never bubble.
If it has stopped, and the gravity is still high, there can be several reasons. The most obvious would be that the temp dropped too low and it went into hibernation. In that case, warming it up and gently rousing the yeast will get it started.
it might have finished early due to low nutrient levels in which case you may need to add some nutrient and a new pitch of yeast.
Or the yeast may have reached its maximum alcohol tolerance. I seem to remember that your recipe had a bunch of extra sugar so that may be it. Unlikely though as you would need to get over 12% for most yeasts to stop. If it is that, you will need to pitch some higher tolerance yeast. EC1118 will take you up to 18-19%.
Or it could be unfermentable sugars. You used a lot of pear and maltodextrin so it could have stopped due to lack of fermentable sugar.
Cheers
Dave