As long as you're riding plenty slow to accommodate pedestrian traffic, the main difference is the skinny tires, which are much more likely to get punctured by glass. There tends to be a LOT of broken glass on the bike trails in our area. Also, this time of year, if there are wet leaves, you probably will have less traction with the skinny tires. Just be careful, watch the road while still keeping your line of sight up to anticipate hazards, and you'll be fine.