If he doesn't have sign in/out privileges, then you will have to take him to the Lab to sign in, so there would be no need to beep you. Your beeper/pager would be mainly for asking you to pick him up, etc.
If he has sign in/out privileges then you can request a page--these are text so it would say "I'm at club" or "I'm leaving the lab for the room now" He has to request this be done--they do not page automatically if they have sign out privileges. You may want to consider getting 2 way radios to keep in touch. It didn't work too well for us, but might for you.