What if your students don’t use devices?

Hi! Totally Classcraft noobie here but my students like it so I’m trying to make it work for them!
I am having a hard time rewarding/penalizing a student in real time. There have been so many times that a student has done something awesome & I want to give them XP or vice versa a student did something negative & I want to take away XP, but I just don’t have time to stop what I’m doing, pull out my phone, open the right class, find the right student, and click the appropriate option.
Anyone have any suggestions?
I teach 6 periods a day, 50 minutes each so each period is pretty fast-paced. And I teach art so my hands are often dirty & I don’t want to dirty/damage my phone.