The Jehovah's Witnesses claim that the Holy Spirit is none other than a force... however when we compare scripture with scripture, we begin to see that the Holy Spirit is a person.
As the Jehovah's Witnesses dispute this, the question still remains...
"Who/What is the Holy Spirit?"
The Holy Spirit can :
Be grieved
Be Blasphemed against...
Can pray
Can intercede
Can speak
Can teach
Can guide
Can perform miracles
Can have conversations
Can have fellowship/communion with believers
Can comfort
All the traits of a person, rather than a force.