Yes, "like" is much less awkward because it actually makes sense to say "I like your picture" and doesn't make sense to say "I plus one your picture". On your

Yes, "like" is much less awkward because it actually makes sense to say "I like your picture" and doesn't make sense to say "I plus one your picture". On your second point, I don't think Facebook was filled with geeks, it was filled with all sorts of college students.