My daughter misses me the usual amount and gives me a huge hug when we've been apart for a while.
My son misses me a tremendous amount when I'm working a lot and will come visit me at work and just sit near me. He will also text me from Bee's phone, asking me if I want to hang out. It's really sweet but also hard to balance his desire for quality time! I always think of that Harry Chapin son "Cat's in the Cradle" and try to make as much time for him as possible.
Do your kids miss you when you're working?