I always used 2 pumps at the same time either morning or evening. One pump on each thigh. Some find they like to spread the doses - so one morning and one evening but you shouldn't really need to do this with 2 pumps per day but if you increase to 3-4 pumps then it's better to spread them morning and evening.
I tended to apply the gel in the mornings when I first woke - I'd set the alarm, apply the gel and allow it to dry before dressing or, if I had a shower in the morning, I'd shower then apply the gel and then do my makeup, dry hair etc. to allow the gel to dry before dressing.
You mustn't get the area wet or have skin contact with anyone for at least 2hours after application - this is why I usually applied in the morning, so if my hubby and I wanted
before sleeping, I didn't have to worry about transference. It's basically up to you to find a routine that works for you. DG x