Newly dating and in need of tips

So I’ve been on one date with this guy about 3 weeks ago. Given the busy time of year we have both been super busy but are super keen to see each other again. We text pretty much every day, but it’s been mostly about what we are up to and emotional support for each other…….I’ve never really sexted before but am not sure I’m fully into it but in need of some tips to change things to be a bit more flirty and let him know I’d be interested in him physically to keep the spark going while we wait to hang out again….any tips on subtle ways I could do this for a newbie dating someone new? I’m need of some help 😅