Write the phrase "Eu Te Amo." Of course, knowing how to spell it isn't enough -- you need to know how to say it too.
Pronounce "Eu" as "Eiu." "Te" is pronounced like the "chee" in cheese. Even though the words starts with a "T," you do not make a "T" sound when you say it. That is just one of the many quirks of the Portuguese language.
Sound out "Amo." It is a combination of "ahh" (like the beginning of the word Amish) and "Moe" (like the bartender in "The Simpsons"). Put the emphasis on the "ahh" part of the word.
Put it all together now: Eiu chee AHH-moe.