Close the eyes properly?
Usually there appear various sensations like ie;
- posture not being straight
- legs not being very comfortable
- odd sensations in the face or body
- itching, numbing etc
- wanting to adjust posture etc
Usually when some odd sensation appears, it distracts you from the breath but if you were to switch your focus to the sensation the perception of breath would distract you from the sensation.
So there is not that much you can do as you will get distracted either way, so i try to do as little as possible.
Eventually the distracting sensations will change & subside, so you can just observe that arising, persisting and cessation in that.
What i do is aknowledging that ie 'a painful bodily feeling has arisen' and just observe it distracting me whilst maintaining focus on the breath and whatever else is going on.
When distracted just acknowledge that a distracting feeling, thought or perception (however it appears to you) has arisen and go back to breath. Keep observing the arising, persistence and cessation of both perceptions (breath + distraction) whilst reapplying the focus and keeping it connected to breathing.
One can't really do anything about various thoughts, feelings & perceptions claiming focus so one just aknowledges their arising, persistence and the cessation.
I don't necessarily take note as in verbalizing thoughts as is taught by ie Yuttadhammo Bhikkhu but i do it occasionally. I don't think it's a mistake to do it but i think it is eventually somewhat distracting and is not something you do in the 2nd jhana but it's ok up until that point if one finds it useful to keep focused.
I tend to be less "hands on" in general and tend to stay mindful of the arising, persisting & cessation of thoughts feelings & perceptions by applying mind to something and keeping it applied without intentionally giving rise to thoughts.
If i notice particular hindrances then i drop the perception of breathing to counter the hindrance lest it can be well countered by the perception of breath (ie general restlessness).