How do you go at learning new vocabulary while reading?

Maybe the title is self explanatory, maybe not. I am curious to see how other readers learn new vocabulary when reading text. Do you highlight new words and look them up later? Do you just use context clues to guess at the meaning? I am reading a book right now that i love but there are probably 4-5 words a page i have to stop and search up.

The wording of a lot of material i read, i generally understand. I may come across a word or 2 i dont know each chapter. When i come a new word, I just go to my phones dictionary, look it up and continue reading.

As i said I am curious to see what other readers do when they come across foreign words, especially a lot when reading a harder text.