Some may have noticed that in the first panel, the Kid appears to be trying to give the Bender "knuckles" by way of greeting. In answer to your unvoiced question, yes. In the interest of keeping interpersonal meetings sanitary, the fist-pound replaced the handshake that was used millennium ago.
Kid: Hi, it's nice to meet you. I'm the new kid.
Jackman: Oh, should have mentioned. She's also mute.
Pex: Don't be embarrassed, we all did it when we came aboard.
Jackman: yeah, at least you didn't say something about her butt.
Eddie: I still stand by that statement!