I think, you can be even more handholdy(is that a word?) than that implementation. I might be blind or stupid, but I can't seem to easily find any stat screen on the UI. The stat screen could show something like [went to school X/2 times] under knowledge(is that a stat?) trained [X/2 times] under strength etc.
Go nuts and have a GPS tracker or a device/method akin to this on some [people menu] on the UI. Should you want to avoid the overused phone thing, then simply call it a mutation on the MC's behalf. Gaining a new sense where he feel the specific radiation pattern of people he has met, much like a dog can recognise smell, and just use whatever UI you feel like making. He can't sense people, he haven't met, since it's drowned like white noise with all the other radiation. Only when he gets to meet them in person does the radiation pattern make sense (so it doesn't become an all too convenient plot device to track every enemy or person/alien of interest). Allowing the player to track. where the people you already know are located. I know, it might seem too convenient in regards to the universe/atmosphere building, but it would smooth out the gameplay/experience. Want to have some times where the women are inaccesible with this feature? She's in her room doing whatever and currently doesn't want to see the MC
