If I type a few words on my keyboard can expert get my fingerprints from the keyboard? provided both keyboard and fingers are NOT moist.
Yes, your finger prints can be easily traced by experts. Nowadays, biometric information his highly used for determining the authenticity of the person and it very much in use for devices like keyboards etc.
Even if your fingers aren't moist, you've got some small amount of normal skin oils on them - they'll leave trace amounts on the keyboard that can be lifted by a good forensics person. That said, keyboards aren't the best surfaces to work with - the surface area you hit is fairly small, so there's not a lot of print there, and most of the keys would have multiple overlapping prints, so it would be hard to single out a particular print without it being obscured by underlying prints.
