Scout is adorable and I think his lazy eye gives him character! How can Gigi not fall in love with him!
I'm almost sure you can't get a cold from a cat or give them one. I think a kitty cold is actually an Upper respritory infection. I would just watch him and if it continues, take him to the vet. When I first got my kids, they both had URI and DELIGHTED in coming up to me laying in bed and sneezing in my face. Nothing like kitty snot in the morning!

Calvin & Hobbes mom