Eddie was a little later than some of his friends to start pointing at things. He didn't really start until he was about 14 months, I think. Since then he's been pointing a lot, at anything that interests him. Often he comments "Da" when he points at something. Sometimes he seems to point in a random direction—I think he's just at a loss for something to say.
One thing he likes to do with his pointing finger is poke us in the nose. This is something we've done to him for ages—push his nose button and say "boop!" Now he likes to do that to us, but we are still required to provide the sound effect. He will keep poking until we do. Then he laughs.
Last night, he poked Mommy in the nose, but instead of "boop" she made an elephant sound—"awooga!" He liked that, and he repeated it! "Awoo-ah, awoo-ah," he said. He's repeated it a few more times since then, too. Perhaps a month ago he was repeating more words back to us, but he seems to have lost interest in that lately, so this was a novelty.
Lately, he's started pointing at himself, in the middle of his chest. Often he alternates pointing at something, then himself, then back at the thing, etc. It's not clear what this means: The obvious interpretation, "That is for me" or "I want that" often doesn't make sense, because he's pointing at a wall or something.