Start with their usual choice
A bottle they already enjoy is a useful clue. Read how the maker describes it, and use those flavours to guide your search. Avoid choosing purely by the colour of the bottle.
Bottle or discovery set?
A full bottle suits a known favourite. A small selection can offer variety, but read the total volume and the contents. Do not assume every attractive presentation box contains full-size bottles.
Look at what comes with it
Some sets include a glass or other accessories. Check the listing’s contents rather than relying on the styled photograph. If adding mixers separately, consider their preferences and check the packaging dates.
Make it personal
A simple note about why you chose it adds more thought than another accessory. For someone who does not drink, consider glassware or a suitable alcohol-free option instead.