There’s some relation in that they both act on fields, but the things that affect those fields are very different (higgs bosons and electrons respectively) and the relationship between all that for an ‘unified theory’ is a topic of much research. IANAP though (not a physicist)
I just walk in and say ‘Good Morning’ in passing, no need for an answer or waiting for them to stop talking. Then I go settle in for the work and if they want to chat they will probably talk to you then. If you were there first I guess you can take the initiative.