Read about on hitchwiki. It’s a junction and one way takes you onto the M28, one way on smaller roads to Ormskirk. I flittered about between the two but eventually got a lift on the smaller road to Ormskirk… however I ended up getting stuck here as these little villages inbetween Liverpool and Preston are pretty hard to hitchhike out of. Equally, I’m not sure if cars can actually pull over on the M28 road, and it is most definitely illegal to stand there. So all in all, not a great spot, if you want to hitchhike north out of Liverpool your best bet honestly is just getting the X2 bus to Preston and hitchhiking onto the M6 out of Preston it’s way more straightforward.

So I didn’t get any car but you can try to sign, they is a road with a bus stop. The gas station doesn’t have a lot of frequence and it’s moesly truck. Nobidy were going north to M6 (maybe I was unlucky). You can come by bus from Preston center easily.

Had a sign saying M6 North, got a lift to Preston with a lovely bloke. Didn't take long at all but it was at around 5pm so a few people were heading home

Plenty of places to stop in Long preston, got a lift heading East from the bus stop

Going southbound. Traffic is slow but single lane only. No place for cars to stop. Better for local routes e.g. Preston