Can you paint press board walls?? My sister is moving into a new apt. The lone thing is...

My sister is moving into a new apt. The lone thing is the kitchen walls are this interesting pressboard. The walls are a collage of what looks close to wood chips. Not a very pretty look IMO.. sooo can she paint over it.. if so what type of paint should she buy??
My friend requirements some drawing for her room?
Answers:    Sure but it will soak up extra paint and it will not be smooth to look at nor smooth to touch in consequence difficult to wash & hold on to clean.
Small room??
latex, prime it and paint it