I find tipping frequently awkward but never so in a Lyft. I get a company Lyft credit for trips to/from office so almost always tip on those. For personal trips, I feel no pressure to tip but appreciate the opportunity to do so. I recall a trip to the hotel from Disneyland with 2 toddlers in pouring rain that took 40 minutes to go 3 miles with a total fare of something like $8. That's an easy tip situation.