I highly recommend limping. Just pick a paw, and favor it a little.
It will probably mean a vet visit, and I know that's not fun. But get past that, and things get better.
I've been getting extra cheese and livergreat since I started limping. They try to give me pills, and I keep spitting them out. So more cheese or livergreat to try to hide the pill better. Then I lay around and look sad, and everyone feels bad and pets me and gives me treats. The humans have been all worried about me, so they're extra nice.
I'll probably stop in a few days, but it's really great fun. Give it a try. Remember, pills are hidden in the treats, so be sure to spit it out the first few times. But then you have to take it. If you don't, they'll just shove the pill down your throat, defeating the purpose of limping for livergreat.