Let’s suppose you know someone who was in the hospital for an extended stay, 144 days for example.  For whatever reason, during their stay,  you never visited them.  First, understand that while most people in the hospital like that want all the visitors they can get, they also know that people can have many reasons for not visiting – time, discomfort with hospitals, etc.  When that person gets out and you see them at a social function, that’s not the time to let your guilt overwhelm you and apologize for not showing up.  It’s awkward.  The former patient can only say something forgiving.  Your excuse will make them uncomfortable.  And, at least internally, they’ll be evaluating it.  Just don’t do it.  Instead, express limited interest in their progress and happiness that they are out.  Don’t suggest stretches or exercises to supplement their occupational or physical therapy routines.  They are working with trained professionals.  Be encouraging; be supportive and just move on.