If you are really worried about this, read this article. (http://www.stumptuous.com/this-just-in-high-rep-low-weight-toning-is-crap) But the short answer is no, lifting weights will not bulk you up. In fact, it will help you burn more calories and look better naked.
A) Back squat
B) 8 minute AMRAP:
8 alternating single arm db burpee clusters (50/35lb)
8 toes to bar
8 alternating db snatches
1500m row-5 rounds of (5 pullups-10 pushups-15 air squats)-1 mile run-5 rounds of (5 pullups-10 pushups-15 air squats)- 1500m row