1) Checking out 2) Checking out visually 3) Giving the look to 4) Giving the once-over 5) Glancing at 6) Interested in 7) Keeping tabs on 8) Looking at 9) Looking over 10) Observing 11) Ogling 12) Scrutinizing 13) Showing interest in 14) Staring at 15) Viewing speculatively 16) Watching closely 17) With a view toward 1) Ogling