C.B.
My son is almost 3 and every kid he sees at the park is referred to as his friends. He'll see a bunch of kids & say 'look at all the friends!' He'll go up to kids & I will usually prompt him to say Hi! and to introduce himself. Typically they run off & play and then I back out of the scene. If I think they need a little extra to get going, I'll say (i.e.) 'Boy, that boy has a very cool shirt on!', and then my son & the other child will be excited about their shirts. I think it's hard to 'break the ice' at this age, so I just try to help. Some kids just don't want to play, and that's okay, but for the most part it works out just fine!