You‘ll have to book most venues, even pubs, with two- or three-hour reservation slots available. Table service only, with different groups spaced at least one metre apart, strictly-enforced queueing systems and one-way arrows on the floor.
Groups of more than two households are banned but you can meet up in groups of six if dining outdoors. Venues that were previously indoor-only have invested in picnic tables and outdoor garden lighting, while some have put up marquees and even plastic dining ‚bubbles‘.