My girlfriend told me to come to her workplace and pick up the lunch she made for me, but I don't think I can handle going over there.
Why not? Wouldn't you want to pick up the lunch?
I don't want to visit her while she's working. I'm shy, and I'm afraid her coworkers' reactions will embarrass me.
Coworkers can be a pain sometimes. Still, she put effort into making lunch for you, which was a very nice thing to do. It will seem ungrateful, and will probably hurt her feelings if you don't eat it.
Yeah, I can see your point. I should get over there while it's warm, because it'll get cold if I wait. I don't enjoy cold food.
I think you're doing the right thing by going. It'll make her feel appreciated for the effort she made.