Meditation can be practised anywhere... sitting or laying down, open or closed eyes... and even while walking!
But it is recommended for beginners to sit and meditate in the beginning
For everyone...
Deep (or Diaphragmatic) breathing (to relax the mind)
Body awareness (or Body scan) (to relax the body)
Mindfulness (or Awareness) (awareness of the breath & body which reflects the mind)
For those who seek to know or understand themselves on a much deeper or intimate level...
Self-Inquiry (or Self-Questioning) (to really challenge The ego into revealing it's true nature)
Recognizing & letting go of all acquired Conditionings & Identities...
Resting as Awareness (practising non-doing)
Resource: Rest as Awareness by Adyashanti
Moving beyond Awareness & into Nothingness