Please paint the front pink.
Koichi's public face is the president of Tofugu, but his private face is the most well-known juggler in the world.
Which side of a ten yen coin is the face?
This is the noun version of the kanji express. If you want to understand what something is trying to express you usually look at its front or its exterior. This word is usually used for the exterior face of buildings.
Since this word is made up of a single kanji, it should use the kun'yomi reading. You haven't learned this reading yet though, so here's a mnemonic to help you:
You're standing in front of a building, staring at its front. You spend some time gazing at it before you realize what it is. "Oh, motel (おもて)", you say aloud. A little time looking at the exterior and you're able to figure it out.