  By analysing the K2 short-cadence photometry we detect starspot occultation
events in the lightcurve of WASP-107, the host star of a warm-Saturn exoplanet.
WASP-107 also shows a rotational modulation with a period of 17.5 +/- 1.4 d.
Given that the rotational period is nearly three times the planet's orbital
period, one would expect in an aligned system to see starspot occultation
events to recur every three transits. The absence of such occultation
recurrences suggests a misaligned orbit unless the starspots' lifetimes are
shorter than the star's rotational period. We also find stellar variability
resembling gamma Doradus pulsations in the lightcurve of WASP-118, which hosts
an inflated hot Jupiter. The variability is multi-periodic with a variable
semi-amplitude of about 200 ppm. In addition to these findings we use the K2
data to refine the parameters of both systems, and report non-detections of
transit-timing variations, secondary eclipses and any additional transiting
planets. We used the upper limits on the secondary-eclipse depths to estimate
upper limits on the planetary geometric albedos of 0.7 for WASP-107b and 0.2
for WASP-118b.
