Panel 2: More sniffing
Panel 3: And more sniffing. WTF?
Panel 4: I'm not sure "totally" belongs in that sentence. But that's how interesting this strip is, that that's all I have to comment on.
Panel 5: Oh wow a pun. And I'm not sure who the dogs are keeping in touch with. Each other? Other community dogs? IS that why dogs sniff?
Zits an' vacuuming strip.