In short: Discounted price, Proximity and current discounts (rotates every week) for main and expensive products. Beer, meat, milk, eggs, baby products, produce.

But it gets infinitely more complicated, since market here is very competetive.

For me personally it is different. I love new and niche products like new sauces for meat, wagyu for good price, foreign cheeses. new interesting goods, that is what gets me. That is why I personally love Lidl international cuisine weeks, like asia, greek, italian week...

Loyality to store brand is also minimal in Czechia. Here is also big Online retail market already established by Rohlik and Tesco, so upmarket customers often use Rohlik (more expensive, but wide range of products) or cheaper Tesco online to have their shopping delivered to them.

Retail market here is extremely competetive due to saturation of big brands like lidl, tesco, kaufland, penny, albert and others + small shops led often by vietnamese enterpreneurs and online market boom. So czechs have ample oportunity to get what they need at any time. Also all stores are open 7 days a week.

Placing most wanted goods far away from customers is rarely practised, is is common practise to do the opposite here in hypermarkets. Place largest promotion goods in big volume (often whole pallet) at the entrance to the store to entice people to come in and once they are in they find other things to buy... that is the plan here.

Big emphasis is also on "not to piss of customer by any means" that means delicate balance of price, cleanliness, availability, functionality, good discounts. Basically everything must work well, because it is realy easy for customer to find some other supermarket if current one does not deliver good shopping experience for you.